JP3997231B2 - Display control apparatus and display control method - Google Patents

Description

  The present invention relates to a display control technique for displaying information including text and images displayed in a window.

  Conventionally, a communication device is connected to a communication partner device via a communication line. A shared window is displayed on the display unit of the communication device. On this shared window, conference information including text, images, and the like is displayed in the same manner as the communication partner device.

  In addition, text, images, and the like can be written in the shared window, and the change result is immediately reflected in the other party's shared window. When writing text or images in a file to a shared window while using a communication device, start the editor once to open the file, select the entire text or image in the file, copy and I try to paste it.

  Here, the copy and paste is an operation of copying a text or image selected by a drag operation or the like to a temporary storage area called a clip board and pasting it in another window from the clip board. The drag operation is an operation of moving the mouse while holding down the mouse button.

  However, in the above conventional example, when writing text or images in a file that is in use by a communication device to a shared window, the editor is started once to open the file, and the entire text or image in the file is selected. Thus, since copy and paste must be performed, the operation is complicated.

  In view of the above-described problems, an object of the present invention is to enable an operation for writing information in a file to a shared window easily and quickly.

The display control device of the present invention is a display control device for displaying text data in a window displayed on the display unit, and drags a file icon displayed outside the window by an operating means, and enters the window. According to an operation of dropping the displayed text data, the display control means inserts the text data in the file corresponding to the dropped file icon between the characters at the dropped position.
The display control method of the present invention is a display control method for displaying text data in a window displayed on a display unit, wherein a file icon displayed outside the window is dragged by an operating means, and the window is displayed. In accordance with an operation of dropping the text data displayed in the file, a display process is executed for inserting the text data in the file corresponding to the dropped file icon between the characters at the dropped position. .
According to the above technical means, the text data in the file corresponding to the file icon can be expanded on the shared screen (shared window) simply by performing a simple predetermined operation on the file icon displayed on the same screen. And you don't have to start the editor one after another to write text to the shared window.

  According to the present invention, the text data in the file is expanded on the shared screen by performing a predetermined operation, such as a drag operation and a drop operation, on icons displayed corresponding to various files, Since there is a means to share the text data in the file with the partner device, information corresponding to the icon can be shared by simply dragging and dropping the icon without starting the editor one by one It can be captured on the screen, and the operation of writing the text data in the file to the shared screen can be performed easily and quickly.

Embodiments of the present invention will be described below with reference to the drawings. In the following description, a communication apparatus to which a display control apparatus according to an embodiment of the present invention is applied will be described as an example.
First, a case where text in a file is expanded on a shared window will be described as a first embodiment.

  FIG. 1 is a block diagram illustrating a configuration of a communication apparatus according to the present embodiment. In FIG. 1, 1 is a CPU for controlling the entire apparatus, 2 is a ROM for storing a program executed by the CPU 1, and 3 is a RAM for storing various data used by the CPU 1.

  Next, 4 is an external storage device composed of a magnetic disk or the like for storing various files (files such as text and images) used by the CPU 1, and 5 is an operation composed of a keyboard, a mouse, etc. for operating this device. Reference numeral 6 denotes a display control unit that controls the display unit 7 including a CRT (CRT), an LCD (Liquid Crystal Display), and the like.

Next, 8 is a line control unit for controlling an interface such as a LAN (Local Area Network), 9 is a line such as a LAN where this apparatus is connected to a communication partner apparatus, 10 is each of the above configuration blocks 1 to 6, 8 is a bus for connecting 8.
The communication device configured as described above is connected to another communication device configured in the same manner via the line 9.

FIG. 2 is a diagram illustrating a display example of the screen of the display unit 7 before development of the text file.
In FIG. 2, reference numeral 11 denotes an entire screen of the display unit 7, and reference numeral 12 denotes a shared window (shared screen) for sharing the displayed text with the partner apparatus.

  Next, 13 to 15 are file icons corresponding to various text files stored in the external storage device 4 of FIG. Reference numeral 16 denotes a drag icon which is displayed while a drag operation (move the mouse while holding down the mouse button) is performed.

  Next, reference numeral 17 denotes a pointer, which arbitrarily moves on the display screen 11 in conjunction with the operation of the operation unit 5 such as a mouse or a keyboard. The pointer 17 indicates an operation position when various operations are performed using the operation unit 5. 18 is a cursor displayed by a click operation (pressing a mouse button for a short time), and 19 is hatching displayed in the shared window 12 by a drag operation.

  As shown in FIG. 2A, when the text in the file stored in the external storage device 4 is to be expanded in the shared window 12, the pointer 17 is first placed at the position where the text is to be expanded in the shared window 12. The cursor 18 is displayed by moving and performing a click operation there.

  Next, for example, when it is desired to expand a file corresponding to the file icon 13 in the shared window 12, the pointer 17 is moved onto the file icon 13 to start a drag operation. When the drag operation is started, a drag icon 16 is displayed at the position where the moving pointer 17 is present during the drag.

  When the pointer 17 is moved to the position of the cursor 18 and a drop operation is performed (the mouse button is released after the drag operation), the content of the file corresponding to the file icon 13 selected by the drag operation is changed to the cursor 18. Is inserted before the position.

  When the drop operation is performed, the display of the dragged file icon 13 and the contents of the file corresponding to the file icon 13 remain, but the display of the drag icon 16 on the shared window 12 disappears.

  Designation of the text development position can also be performed by displaying hatching 19 as shown in FIG. In this case, the pointer 17 is moved to a range where the text is to be expanded in the shared window 12, and the hatching 19 is displayed by performing a drag operation there.

  Then, when the file icon 13 is dragged and dropped at the position of the hatching 19 in the same manner as described above, the text within the hatching 19 is the content of the file corresponding to the file icon 13 selected by the drag operation. Replaced.

FIG. 3 is a diagram showing a display example of the screen of the display unit 7 after the file development as described above.
As described with reference to FIG. 2, when the file icon 13 is dropped on the cursor 18, the contents of the file corresponding to the file icon 13 are inserted before the position of the cursor 18. When the file icon 13 is dropped on the hatching 19, the text within the hatching 19 is replaced with the contents of the file corresponding to the file icon 13.

  As a result, the text developed in the shared window 12 is as shown in FIG. In FIG. 3, the original text before expansion is indicated by “XXX... XXX”, and the file inserted or replaced by expansion is indicated by “AAA... AAA”.

  As described above, information on the position or range (the position of the cursor 18 or the range of the hatching 19) where the text designated by the operation unit 5 is developed, and the text in the file corresponding to the designated file icon 13 are line control. The data is transmitted to the partner apparatus via the line 9 by the unit 8.

  On the other hand, also in the receiving side apparatus connected to the transmitting side apparatus as described above via the line 9, a shared window 12 similar to that of the counterpart side apparatus is displayed on the display screen 11. However, the file icons 13 to 15 are not necessarily displayed.

  As a result, when the text expansion position or range information and the text in the file are received by the line control unit 8 of the reception side apparatus, the same position as the position expanded in the shared window 12 of the transmission side apparatus is set. The same text "AAA ... AAA" is displayed.

FIG. 4 is a diagram showing a memory map on the RAM 3 in the present embodiment.
In FIG. 4, Md is a variable for storing the drag operation mode ("range specification" or "text expansion"), Tx is a variable for storing the distance from the left end of the shared window 12 to the pointer 17 in character units, and Ty is shared. This is a variable for storing the distance from the upper end of the window 12 to the pointer 17 in character units.

  Next, Sx (1) is an array that stores the distance from the left end of the shared window 12 to the beginning of the cursor 18 or hatching 19 in character units, and Sx (2) is the distance from the left end of the shared window 12 to the end of the hatching 19 An array to store in character units (set to zero when cursor 18 is displayed).

  Next, Sy (1) is an array that stores the distance from the upper end of the shared window 12 to the beginning of the cursor 18 or hatching 19 in character units, and Sy (2) is the distance from the upper end of the shared window 12 to the end of the hatching 19 Are arrayed in units of characters (when the cursor 18 is displayed, it is set to zero).

  Next, Rx (1) is a variable for storing the value of the storage field Cx (1) of the received array Sx (1), and Rx (2) is the value of the storage field Cx (2) of the received array Sx (2). A variable to be stored, Ry (1) is a variable for storing the value of the storage field Cy (1) of the received array Sy (1), and Ry (2) is a storage field Cy (2) of the received array Sy (2). A variable that stores a value. The storage fields Cx (1), Cx (2), Cy (1), and Cy (2) will be described later.

  Next, Px is a variable that stores the distance from the left end of the display screen 11 to the pointer 17 in units of pixels, Py is a variable that stores the distance from the upper end of the display screen 11 to the pointer 17 in units of pixels, and Dx is a variable of the display screen 11. A variable for storing the distance from the left end to the drag icon 16 in units of pixels, and Dy is a variable for storing the distance from the upper end of the display screen 11 to the drag icon 16 in units of pixels.

  Next, Fn (i) is an array for storing file names of files to be expanded, Tx (i, j) is an array for storing text displayed in the shared window 12 (i is a column number, j is a line number), Bf (i) is an array for storing bitmaps of file icons 13 to 15, and Bd (i) is an array for storing bitmaps of drag icons 16.

  When the apparatus is activated, the array Bf (i) is initialized with the bitmap of the file icons 13 to 15 and the array Bd (i) is initialized with the bitmap of the drag icon 16. The initialized bitmap information is transferred to the display control unit 6 when each icon 13 to 16 is displayed.

FIG. 5 is a diagram showing a packet format of a text file transmitted from the line control unit 8.
In FIG. 5, Lp is a field for storing the packet length, Cm is a field for storing the type of command, Cx (1) is a field for storing the value of the array Sx (1), and Cx (2) is an array Sx ( 2), a field storing the value of the array Sy (1), Cy (2) a field storing the value of the array Sy (2), and T (i) a file Fn. This is a field for storing the text in (i).

  Next, FIG. 6 to FIG. 10 show flowcharts of processing activated by the CPU 1 when each event occurs in the case of text expansion among the programs stored in the ROM 2 shown in FIG.

  FIG. 6 is a flowchart of processing started when the mouse is clicked. That is, this flowchart shows the processing when displaying the cursor 18 in FIG.

  In FIG. 6, first, in step P1, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “text”. If it is “text”, the process proceeds to step P2. If not, the process ends.

  In step P2, the CPU 1 instructs the display control unit 6 to erase the display of the cursor 18 or the hatching 19 at the position indicated by the array Sx (1), Sx (2), Sy (1), Sy (2). . This is to delete the cursor 18 and the hatching 19 when they are already displayed.

  Next, in step P3, the position information of the pointer 17 is read from the display control unit 6 into the variables Tx and Ty in units of characters. In step P4, the values of the variables Tx and Ty are set in the arrays Sx (1) and Sy (1), respectively. In step P5, the values S0 (2) and Sy (2) are set to zero. . Subsequently, in step P6, the display control unit 6 is instructed to display the cursor 18 at the position indicated by the variables Tx and Ty, that is, the position designated by the click operation, and the process is terminated.

  FIG. 7 is a flowchart of processing started at the start of a mouse drag operation. That is, the processes in steps P1 to P7 in FIG. 7 indicate the processes when the head position of the hatching 19 in FIG. 2B is designated, and the processes in steps P8 to P13 are the same as those in FIGS. The process at the time of selecting a desired file icon from the file icons 13-15 shown in FIG.

  In FIG. 7, first, in step P1, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “text”. If it is “text”, the process proceeds to step P2. Otherwise, go to Step P8.

  In step P2, the value of the variable Md is set to a value representing “range specification”. Subsequently, in step P3, the CPU 1 causes the display control unit 6 to delete the display of the cursor 18 or the hatching 19 at the position indicated by the array Sx (1), Sx (2), Sy (1), Sy (2). Instruct.

  Next, in step P4, the position information of the pointer 17 is read from the display control unit 6 into the variables Tx and Ty in units of characters. In step P5, the values of the variables Tx and Ty are set in the arrays Sx (1) and Sy (1), respectively. In step P6, the values of the variables Tx and Ty are set in the arrays Sx (2) and Sy (2), respectively. Set to.

  Thereafter, in step P7, the display control unit 6 displays the hatching 19 in the range indicated by the arrays Sx (1), Sx (2), Sy (1), Sy (2), that is, the range specified by the drag operation. To end the process. In this case, since Sx (1) = Sx (2) and Sy (1) = Sy (2), the hatching 19 is displayed as a dot at this stage.

  On the other hand, in step P8, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “file icon”. If it is “file icon”, the process proceeds to step P9. Otherwise, go to Step P14.

  In step P9, the value of the variable Md is set to a value representing “text development”. Subsequently, in step P10, the position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py in units of pixels. In step P11, the values of variables Px and Py are set to variables Dx and Dy, respectively.

  Next, in step P12, the file name of the file to be expanded is read from the display control unit 6 into the array Fn (i). In step P13, the display control unit 6 is instructed to display the drag icon 16 at the position indicated by the variables Px and Py, that is, the position where the pointer 17 is present, and the process is terminated.

  Further, when the process proceeds from step P8 to step P14, the value of the variable Md is set to a value corresponding to “idle” representing a state where neither “range designation” nor “text expansion” is performed, and the process is terminated. .

  FIG. 8 is a flowchart of processing that is started when the mouse is moved while dragging. That is, the processes in steps P1 to P5 in FIG. 8 show the processes during the designation of the hatched range 19 in FIG. 2B, and the processes in steps P6 to P10 are the same as those in FIG. The process during the movement of the drag icon 16 shown in (b) is shown.

  In FIG. 8, first, in step P1, it is determined whether or not the value of the variable Md is a value indicating “range specification”. If the value is “range specification”, the process proceeds to step P2. Otherwise, go to Step P6.

  In step P2, the display control unit 6 is instructed to erase the display of the hatching 19 in the range indicated by the current values of the arrays Sx (1), Sx (2), Sy (1), Sy (2). . Subsequently, in step P3, the position information of the pointer 17 is read from the display control unit 6 into the variables Tx and Ty in units of characters.

  Next, in step P4, the values of the variables Tx and Ty are set in the arrays Sx (2) and Sy (2), respectively. In step P5, new values of the arrays Sx (1), Sx (2), Sy (1), Sy (2) set as described above (however, the array Sx (1 representing the starting point of the hatching 19) ), The value of Sy (1) has not changed), the display control unit 6 is instructed to display the hatching 19 in the range indicated by (), and the process is terminated.

  On the other hand, when the process proceeds from step P1 to step P6, it is determined whether or not the value of the variable Md is a value representing “text development”. If the value is “text development”, the process proceeds to step P7. If not, the process ends.

  In Step P7, the display control unit 6 is instructed to delete the display of the drag icon 16 at the position indicated by the current values of the variables Dx and Dy. Subsequently, in step P8, the position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py in units of pixels.

  Next, in step P9, the values of variables Px and Py are set to variables Dx and Dy, respectively. In step P10, the display control unit 6 is instructed to display the drag icon 16 at the position indicated by the new values of the variables Dx and Dy set as described above, and the process ends.

FIG. 9 is a flowchart of processing started when the mouse is dropped.
In FIG. 9, first, in step P1, it is determined whether or not the value of the variable Md is a value representing “text development”. If the value is “text development”, the process proceeds to step P2. If not, the process ends.

  In step P2, the display control unit 6 is instructed to delete the display of the drag icon 16 at the position indicated by the variables Dx and Dy. Subsequently, in step P3, it is determined whether or not the positions indicated by the variables Dx and Dy are within the shared window 12. And if it exists in the share window 12, it will progress to step P4. If not, the process ends.

Here, the position information of the shared window 12 is read from the display control unit 6 in units of pixels, and when the read position information satisfies the following conditions, it is regarded as “in the shared window 12”.
Shared window left edge ≤ Dx ≤ Shared window right edge Shared window bottom edge ≤ Dy ≤ Shared window top edge

  Next, in step P4, the position information of the pointer 17 is read from the display control unit 6 into the variables Tx and Ty in units of characters. In step P5, the position indicated by the variables Tx and Ty is within the position indicated by the arrays Sx (1), Sx (2), Sy (1), Sy (2), that is, the position of the cursor 18 or hatching 19. It is determined whether it is within the range. And if it exists in these positions or ranges, it will progress to Step P6. If not, the process ends.

  Here, the position information of the shared window 12 is read from the display control unit 6 in units of characters, and when the read position information satisfies the following conditions, it is “within the range of the cursor 18 or hatching 19”. I reckon.

When Sx (2) = 0 and Sy (2) = 0 Tx = Sx (1) and Ty = Sy (1)
When Sx (2) ≠ 0, Sy (2) ≠ 0 and Ty = Sy (1),
Sx (1) ≦ Tx ≦ right end of shared window When Sy (1) <Ty <Sy (2),
Left edge of shared window ≦ Tx ≦ right edge of shared window When Ty = Sy (2),
Left edge of shared window ≦ Tx ≦ Sx (2)

  Next, in step P6, the display controller 6 cancels the display of the cursor 18 or hatching 19 at the position or range indicated by the arrays Sx (1), Sx (2), Sy (1), Sy (2). To instruct. Subsequently, in step P7, the text in the file Fn (i) is expanded to the position or range indicated by the arrays Sx (1), Sx (2), Sy (1), Sy (2).

  Here, when Sx (2) = 0 and Sy (2) = 0, the text in the file Fn (i) is inserted at the position indicated by the variables Tx and Ty. When Sx (2) ≠ 0 and Sy (2) ≠ 0, the text in the range indicated by the array Sx (1), Sx (2), Sy (1), Sy (2) is stored in the file Fn (i). Replace with the text in

  In step P8, the text expansion command is stored in the field Cm, and the values of the arrays Sx (1), Sx (2), Sy (1), and Sy (2) are respectively stored in the fields Cx (1) and Cx (2). , Cy (1), Cy (2), and the text in the file Fn (i) is stored in the field T (i). Then, each of these field information is transmitted to the partner apparatus via the line control unit 8, and the process is terminated.

FIG. 10 is a flowchart of processing started when the line control unit 8 receives a packet including a text expansion command in the field Cm.
First, in step P1, the information of the fields Cx (1), Cx (2), Cy (1), Cy (2) received from the line control unit 8 is arranged in the arrays Rx (1), Rx (2), Ry (1), respectively. ), Ry (2). Next, in step P2, the information of the field T (i) received from the line control unit 8 is expanded to the position or range indicated by the arrays Rx (1), Rx (2), Ry (1), Ry (2). To end the process.

  As described above, in this embodiment, the text in the file corresponding to the file icon 13 can be transferred to the shared window 12 simply by dragging and dropping the file icon 13 displayed on the same display screen 11. While expanding, it can transmit to a partner apparatus and the operation which writes a text in the shared window 12 can be performed simply.

  In the first embodiment described above, the designated range of text is displayed by hatching 19, but may be displayed by underline, bold or italic.

Next, a case where an image in a file is developed in a shared window will be described as a second embodiment.
The configuration of the communication apparatus according to the present embodiment is the same as that shown in FIG.

FIG. 11 is a diagram illustrating a display example of the screen of the display unit 7 before the image file is expanded. The same components as those illustrated in FIG. 2 are denoted by the same reference numerals.
11, reference numerals 21 to 23 denote file icons, which correspond to various image files stored in the external storage device 4 of FIG.

  Next, 24 is a cursor displayed by a click operation, and has a different shape from the cursor 18 (see FIG. 2A) displayed at the time of text expansion. Reference numeral 25 denotes a frame displayed in the shared window 12 by a drag operation.

  As shown in FIG. 11A, when an image in a file stored in the external storage device 4 is to be displayed in the shared window 12, first, the pointer 17 is placed at a position in the shared window 12 where the image is to be displayed. The cursor 24 is displayed by moving and clicking there.

  Next, for example, when an image in a file corresponding to the file icon 21 is to be displayed in the shared window 12, the pointer 17 is moved onto the file icon 21 to start a drag operation. When the drag operation is started, a drag icon 16 is displayed at the position where the moving pointer 17 is present during the drag.

  Thereafter, when the pointer 17 is moved to the position of the cursor 24 and a drop operation is performed, an image in the file corresponding to the file icon 21 selected by the drag operation is displayed at the position of the cursor 24.

  When the drop operation is performed, the dragged file icon 21 and the content of the file corresponding to the file icon 21 remain, but the drag icon 16 on the shared window 12 disappears.

  The display position of the image can be designated by displaying the frame 25 as shown in FIG. That is, the pointer 17 is moved to a range where an image in the shared window 12 is to be displayed, and the frame 25 is displayed by performing a drag operation there. The drag operation in this case is performed in the diagonal direction of the frame 25.

  When the file icon 21 is dragged and dropped at the position of the frame 25 in the same manner as described above, an image corresponding to the file icon 21 selected by the drag operation is displayed within the frame 25.

FIG. 12 is a diagram showing a display example of the screen of the display unit 7 after the file development as described above.
As shown in FIG. 12, when the file icon 21 is dropped on the cursor 24 or the frame 25, an image 26 corresponding to the file icon 21 is displayed within the position of the cursor 24 or the range of the frame 25.

  As described above, information about the position or range (the position of the cursor 24 or the range of the frame 25) for displaying the image designated by the operation unit 5 and the image data in the file corresponding to the designated file icon 21 are the line The data is transmitted to the partner apparatus via the line 9 by the control unit 8.

  On the other hand, also in the receiving side apparatus connected to the transmitting side apparatus as described above via the line 9, a shared window 12 similar to that of the counterpart side apparatus is displayed on the display screen 11. However, the file icons 21 to 23 are not necessarily displayed.

  Thus, when the information on the display position or range of the image and the image data in the file are received by the line control unit 8 of the receiving device, the same position or range displayed in the shared window 12 of the transmitting device. The same image 26 is displayed at the position or range.

FIG. 13 is a diagram showing a memory map on the RAM 3 in this embodiment.
In FIG. 13, the same reference numerals as those shown in the memory map shown in FIG. 4 are variables or arrays having the same contents.
First, Md ′ is a variable for storing a drag operation mode (“range specification” or “image development”).

  Next, Wx (1) is an array that stores the distance from the left end of the display screen 11 to the left end of the shared window 12 in units of pixels, and Wx (2) is the distance from the left end of the display screen 11 to the right end of the shared window 12 in pixels. An array for storing in units, Wy (1) is an array for storing the distance from the upper end of the display screen 11 to the upper end of the shared window 12 in units of pixels, and Wy (2) is from the upper end of the display screen 11 to the lower end of the shared window 12. This is an array for storing the distances in units of pixels.

  Next, Sx (1) ′ is an array that stores the distance from the left end of the shared window 12 to the left end of the cursor 24 or the frame 25 in units of pixels, and Sx (2) ′ is the left end of the shared window 12 to the right end of the frame 25. An array for storing distances in pixel units (set to zero when cursor 24 is displayed).

  Next, Sy (1) ′ is an array for storing the distance from the upper end of the shared window 12 to the left end of the cursor 24 or the frame 25 in units of pixels, and Sy (2) ′ is an interval from the upper end of the shared window 12 to the right end of the frame 25. An array for storing distances in pixel units (set to zero when cursor 24 is displayed).

  Next, Rx (1) ′ is a variable for storing the value of the storage field Fx (1) of the received array Sx (1) ′, and Rx (2) ′ is the storage field Fx (2) of the received array Sx (2) ′. ), A variable for storing the value of the storage field Fy (1) of the received array Sy (1) ′, and Ry (2) ′ for the received array Sy (2) ′. Is a variable for storing the value of the storage field Fy (2). The storage fields Fx (1), Fx (2), Fy (1), and Fy (2) will be described later.

  Next, Bx is a variable for storing the number of pixels in the horizontal direction of the image 26 in the file displayed in the shared window 12, and By is the number of pixels in the vertical direction of the image 26 in the file displayed in the shared window 12. A variable to be stored, B (i, j), is an array for storing a bitmap of an image 26 in a file displayed in the shared window 12 (i is a pixel number in the horizontal direction, j is a pixel number in the vertical direction) It is.

  Next, Bfx is a variable that stores the number of pixels in the horizontal direction of the image of the file icons 21 to 23, Bfy is a variable that stores the number of pixels in the vertical direction of the image of the file icons 21 to 23, and Bf (i, j) is a file. An array for storing bitmaps of images of the icons 21 to 23 (i is a pixel number in the horizontal direction, and j is a pixel number in the vertical direction).

  Next, Bdx is a variable that stores the number of pixels in the horizontal direction of the image of the drag icon 16, Bdy is a variable that stores the number of pixels in the vertical direction of the image of the drag icon 16, and Bd (i, j) is an image of the drag icon 16. (I is the number of pixels in the horizontal direction and j is the number of pixels in the vertical direction).

  At the time of starting the apparatus, the variable Bfx is initialized with the number of pixels in the horizontal direction of the image of the file icons 21 to 23, and the variable Bfy is initialized with the number of pixels of the image of the file icons 21 to 23 in the vertical direction. Assume that the array Bf (i, j) is initialized with a bitmap of the images of the file icons 21 to 23.

  The variable Bdx is initialized with the number of pixels in the horizontal direction of the image of the drag icon 16, the variable Bdy is initialized with the number of pixels in the vertical direction of the image of the drag icon 16, and the array Bd (i, j) is the drag icon. It shall be initialized with a bitmap of 16 images.

These initialized variables and arrays are passed to the display control unit 6 when each icon is displayed.
When the shared window 12 is displayed, the arrays Wx and Wy are initialized at the position of the shared window 12 in the display screen 11.

FIG. 14 is a diagram showing the format of an image file packet transmitted from the line control unit 8.
In FIG. 14, Lp is a field for storing the packet length, Cm is a field for storing the type of command, Fx (1) is a field for storing the value of the array Sx (1) ′, and Fx (2) is an array Sx. (2) A field for storing the value of ', Fy (1) is a field for storing the value of the array Sy (1)', Fy (2) is a field for storing the value of the array Sy (2) ', Bm (i , J) is a field for storing a bitmap of the image 26 in the displayed file (i is a pixel number in the horizontal direction and j is a pixel number in the vertical direction).

  Next, FIG. 15 to FIG. 19 show flowcharts of processing activated by the CPU 1 when each event occurs in the case of developing an image among the programs stored in the ROM 2.

  FIG. 15 is a flowchart of a process activated when the mouse is clicked. That is, this flowchart shows the processing when displaying the cursor 24 in FIG.

  In FIG. 15, first, in step P1, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “shared window”. If it is “shared window”, the process proceeds to step P2. If not, the process ends.

  Next, the processing of steps P2 to P6 is almost the same as the processing of steps P2 to P6 shown in FIG. The difference is that, in the flowchart of FIG. 6, since text is handled, character-unit variables Tx, Ty and character-unit arrays Sx (1), Sx (2), Sy (1), Sy (2) are used. However, in this embodiment, since the image is handled, the pixel-unit variables Px and Py and the pixel-unit arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, and Sy (2) It is only using 'and. Therefore, detailed description of the processing contents is omitted here.

  FIG. 16 is a flowchart of processing started at the start of a mouse drag operation. That is, the processes in steps P1 to P7 in FIG. 16 indicate the processes when the head position of the frame 25 shown in FIG. 11B is specified, and the processes in steps P8 to P13 are the same as those in FIG. The process at the time of selecting a desired file icon from the file icons 21-23 shown to (b) is shown.

  In FIG. 16, first in step P1, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “shared window”. If it is “shared window”, the process proceeds to step P2. Otherwise, go to Step P8.

  In this FIG. 16 as well, the processing in steps P2 to P14 is substantially the same as the processing in steps P2 to P14 shown in FIG. That is, in this embodiment, Md ′ is used as a variable for storing the drag operation mode, and the pixel unit variables Px, Py and the pixel unit arrays Sx (1) ′, Sx (2) ′, Sy (1). Only the use of ', Sy (2)' is different from the flowchart of FIG. Therefore, the detailed description of the processing contents is omitted here.

  FIG. 17 is a flowchart of processing that is started when the mouse is moved while dragging. That is, the processes in steps P1 to P6 in FIG. 17 indicate the processes during the range of the frame 25 shown in FIG. 11B, and the processes in steps P7 to P11 are the same as those in FIG. ) And processing during movement of the drag icon 16 shown in (b).

  In FIG. 17, first, in step P1, it is determined whether or not the value of the variable Md ′ is a value indicating “range specification”. If the value is “range specification”, the process proceeds to step P2. Otherwise, go to Step P7.

  In step P2, the position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py in units of pixels. In step P3, the positions indicated by the read variables Px and Py are within the positions or ranges indicated by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′. If it is within the range, the process proceeds to Step P4. If not, the process ends.

  Here, when the following conditions are satisfied, it is regarded as “in the position or range indicated by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′”.

When Sx (1) ′ ≦ Sx (2) ′ and Sy (1) ′ ≦ Sy (2) ′,
Wx (1) + Sx (1) ′ ≦ Px ≦ Wx (1) + Sx (2) ′, and
Wy (1) + Sy (1) ′ ≦ Py ≦ Wy (1) + Sy (2) ′
When Sx (1) ′> Sx (2) ′ and Sy (1) ′ <Sy (2) ′,
Wx (1) + Sx (2) ′ ≦ Px ≦ Wx (1) + Sx (1) ′, and
Wy (1) + Sy (1) ′ ≦ Py ≦ Wy (1) + Sy (2) ′

When Sx (1) ′ <Sx (2) ′ and Sy (1) ′> Sy (2) ′,
Wx (1) + Sx (1) ′ ≦ Px ≦ Wx (1) + Sx (2) ′, and
Wy (1) + Sy (2) ′ ≦ Py ≦ Wy (1) + Sy (1) ′
When Sx (1) ′> Sx (2) ′ and Sy (1) ′> Sy (2) ′,
Wx (1) + Sx (2) ′ ≦ Px ≦ Wx (1) + Sx (1) ′, and
Wy (1) + Sy (2) ′ ≦ Py ≦ Wy (1) + Sy (1) ′

  Next, in step P4, the display of the frame 25 in the range indicated by the current values of the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′ is erased. The display control unit 6 is instructed. Subsequently, in step P5, the values of the variables Px and Py are set in the arrays Sx (2) ′ and Sy (2) ′, respectively.

  In step P5, the frame 25 is displayed in the range indicated by the new values of the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′ set as described above. Thus, the display control unit 6 is instructed to end the process. Here, the frame 25 is displayed so that the line segments formed by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′ are diagonal lines.

  On the other hand, when the process proceeds from step P1 to step P7, it is determined whether or not the value of the variable Md ′ is a value representing “image development”. If the value is “image development”, the process proceeds to step P8. If not, the process ends. Note that the processing in steps P8 to P11 is the same as the processing in steps P7 to P10 in the flowchart shown in FIG.

FIG. 18 is a flowchart of processing that is activated when the mouse is dropped.
In FIG. 18, first, in step P1, it is determined whether or not the value of the variable Md ′ is a value representing “image development”. If the value is “image development”, the process proceeds to step P2. If not, the process ends.

  In step P2, the display control unit 6 is instructed to delete the display of the drag icon 16 at the position indicated by the variables Dx and Dy. Subsequently, in step P3, the position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py in units of pixels.

  In step P4, the position of the pointer 17 indicated by the fetched variables Px and Py is the position or range indicated by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′. Whether it is within the range of the position of the cursor 24 or the frame 25. And if it exists in these positions or ranges, it will progress to Step P5. If not, the process ends.

Here, when the following condition is satisfied, it is regarded as “within the position of the cursor 24 or the range of the frame 25”.
When Sx (2) = 0 and Sy (2) = 0, Px = Wx (1) + Sx (1) ′ and Py = Wy (1) + Sx (1) ′
Sx (2) ≠ 0, Sy (2) ≠ 0,
When the same condition as Step P3 in FIG. 17 is satisfied

  Next, in step P5, the display control unit 6 is instructed to erase the display of the frame 25 in the range indicated by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′. To do. Subsequently, in step P6, the numbers of pixels in the horizontal and vertical directions of the image 26 corresponding to the file name Fn (i) are read into variables Bx and By, respectively.

In step P7, the image 26 corresponding to the file name Fn (i) is displayed at the position or range indicated by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′. .
Here, when Sx (2) ′ = 0 and Sy (2) ′ = 0, the smaller value of (Wx (1) + Bx) and Wx (2) is set in the variable Sx (2) ′. At the same time, the smaller value of (Wy (1) + By) and Wy (2) is set in the variable Sy (2) ′. This is to prevent the range 26 displaying the image represented by the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′ from protruding from the shared window 12. It is.

  The image 26 indicated by the array B (i, j) read from the file Fn (i) is multiplied by | Sx (1) ′ − Sx (2) ′ | / Bx in the horizontal direction and in the vertical direction. | Sy (1) ′ − Sy (2) ′ | / By times. Here, | α | represents the absolute value of the α equation.

  Next, in step P8, the image development command is stored in the field Cm, and the values of the arrays Sx (1) ′, Sx (2) ′, Sy (1) ′, Sy (2) ′ are respectively stored in the field Fx (1). , Fx (2), Fy (1), Fy (2) and the value of the image indicated by the array B (i, j) is stored in the field Bb (i, j). Then, each of these field information is transmitted to the partner apparatus via the line control unit 8, and the process is terminated.

FIG. 19 is a flowchart of processing started when the line control unit 8 receives a packet including an image development command in the field Cm.
First, in step P1, the information of the fields Cx (1), Cx (2), Cy (1), Cy (2) received from the line control unit 8 is arranged in the arrays Rx (1) ′, Rx (2) ′, Ry, respectively. (1) Store in ', Ry (2)'. Next, in step P2, the information indicated by the arrays Rx (1) ′, Rx (2) ′, Ry (1) ′, and Ry (2) ′ indicates the information on the field T (i) received from the line control unit 8. Or it expands to a range and ends processing.

  As described above, in this embodiment, the image in the file corresponding to the file icon 21 can be displayed on the shared window 12 simply by performing a drag operation and a drop operation on the file icon 21 displayed on the same display screen 11. While being displayed, this can be transmitted to the partner apparatus, and an operation of displaying an image on the shared window 12 can be easily performed.

  In the second embodiment described above, the display range of the image is displayed in the frame 25. However, it may be displayed by adding hatching or changing the display color.

  In the second embodiment described above, the clicked position is the upper left corner of the image 26, but the clicked position may be the center or the lower right edge of the image 26.

  Also, in step P7 in FIG. 18, the aspect ratio when the image 26 indicated by the array B (i, j) is enlarged or reduced in accordance with the frame 25 may be different. can do. In this way, the aspect ratio is maintained.

When (| Sx (1) ′ − Sx (2) ′ | / Bx) ≦ (| Sy (1) ′ − Sy (2) ′ | / By), | Sx (1) ′ − Sx respectively in the vertical and horizontal directions. (2) Multiply by '| / Bx.
When (| Sx (1) ′ − Sx (2) ′ | / Bx)> (| Sy (1) ′ − Sy (2) ′ | / By), | Sy (1) ′ − Sy respectively in the vertical and horizontal directions. (2) Multiply by '| / By.

  As described above in the first embodiment and the second embodiment, text that is expanded or displayed in the shared window 12 between the transmission side device and the reception side device connected via the line 9. By transferring files such as images and images to each other, these files can be shared.

  However, in a conventional communication device, when transferring a file to a partner device while the communication device is in use, a file transfer application is started separately, and the destination file name is specified or transferred. File icons were transferred by dragging and dropping them in the sharing window.

However, in such a conventional example, when a file is transferred while the communication device is in use, there is a drawback in that it is impossible for the transmission side device to check whether the reception side device has received the file.
A communication apparatus according to a third embodiment to be described below has been made to solve such a drawback.

  FIG. 20 is a diagram illustrating a display example of the screen of the display unit 7 at the time of file transmission. In FIG. 20, reference numerals 31 to 33 denote file icons, which correspond to files such as texts and images stored in the external storage device 4 of the transmission side device. Reference numeral 34 denotes a file icon displayed in the shared window 12 after the drop operation.

  When it is desired to send a file to the partner apparatus, the file icon 31 corresponding to the file to be sent is dragged and then dropped on the shared window 12.

  That is, first, the pointer 17 is moved onto the file icon 31 corresponding to the file to be transmitted, and the drag operation is started. During this dragging, a drag icon 16 is displayed at the position of the pointer 17 to be moved.

  Thereafter, when the pointer 17 is moved into the shared window 12 and a drop operation is performed, the file icon 34 is displayed at the position where the drop operation is performed, and the display of the drag icon 16 disappears. Then, the file corresponding to the file icon 34 is transmitted to the partner apparatus.

  At this time, the dragged file icon 31 remains displayed, and the contents of the corresponding file are retained. Thereafter, when the reception of the file is completed in the counterpart device, the display of the file icon 34 disappears. As a result, it is possible to confirm on the transmission side whether the partner apparatus has completed reception of the file.

  FIG. 21 is a diagram illustrating a display example of the screen of the display unit 7 when a file is received. In FIG. 21, reference numeral 35 denotes a file icon displayed in the shared window 12 when a file is received from the transmission side device. Reference numeral 36 denotes a file icon displayed after the drop operation.

  When a file is received, a file icon 35 is displayed on the sharing window 12. At this time, the received file is stored in a temporary file. To save the file stored in the temporary file, drag the file icon 35 and drop it outside the shared window 12.

  That is, when the pointer 17 is moved onto the file icon 35 and the drag operation is started, the drag icon 16 is displayed at the position of the pointer 17. Thereafter, when the pointer 17 is moved outside the shared window 12 and a drop operation is performed, the file icon 36 is displayed at the position where the drop operation is performed, and the display of the file icon 35 and the drag icon 16 disappears. This completes file reception.

FIG. 22 is a diagram showing a memory map on the RAM 3 in the present embodiment.
In FIG. 22, the same reference numerals as those shown in the memory map shown in FIG. 4 are variables or arrays having the same contents.
First, Md ″ is a variable for storing a file transfer operation mode (“transmission” or “reception”).

  Next, Cs is a variable for storing a file transmission request command, Cr is a variable for storing a file reception confirmation command, Sx is a variable for storing the value of the variable Dx, and Sy is a variable for storing the value of the variable Dy.

  Next, Rx is a variable that stores the value of the received field Sx, Ry is a variable that stores the value of the received field Sy, Fs is an array that stores the file name of the file to be transmitted, and Fr is the name of the received file (field Fs Value). Bf is an array for storing bitmaps of file icons 31 to 36, and Bd is an array for storing bitmaps of drag icons 16.

  Note that when the apparatus is activated, the variable Cs is initialized by a file transmission request command, and the variable Cr is initialized by a file reception confirmation command. The array Bf is initialized with the bitmap of the file icons 31 to 36, and the array Bd is initialized with the bitmap of the drag icon 16. The bitmap information in the initialized arrays Bf and Bd is transferred to the display control unit 6 when each icon is displayed.

FIG. 23 is a diagram illustrating a format of a packet transmitted from the line control unit 8 of the transmission side apparatus.
In FIG. 23, Lp is a field for storing a packet length, Cs is a field for storing a file transmission request command (variable Cs), Sx is a field for storing a variable Sx, Sy is a field for storing a variable Sy, and Fs is A field for storing the file name (array Fs) of the file to be transmitted, and Fc is a field for storing the content of the file to be transmitted.

FIG. 24 is a diagram showing a format of a packet transmitted from the line control unit 8 of the receiving side device.
In FIG. 24, Lp is a field for storing the packet length, and Cr is a field for storing a file reception confirmation command (variable Cr).

  Next, FIG. 25 to FIG. 29 show flowcharts of processing activated by the CPU 1 when each event occurs in the present embodiment, among the programs stored in the ROM 2.

  FIG. 25 is a flowchart of processing started at the start of a mouse drag operation. That is, this flowchart shows the processing when the file icon 31 in FIG. 20 or the file icon 35 in FIG. 21 is designated.

  In FIG. 25, first, in step P1, it is determined whether or not the type of the currently selected object read from the display control unit 6 is “file icon”. If it is “file icon”, the process proceeds to step P2. If not, the process ends.

  In step P2, the position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py. In step P3, the display control unit 6 is instructed to display the drag icon 16 at the position indicated by the read variables Px and Py.

  Next, in step P4, the values of the variables Px and Py are stored in the variables Dx and Dy, respectively, and in step P5, it is determined whether or not the position of the pointer 17 indicated by the variables Px and Py is in the shared window 12. . Here, when the position of the pointer 17 is not in the shared window 12, this corresponds to the case where the file icon 31 in FIG. 20 is designated, and the process proceeds to Step P6. On the other hand, when the position of the pointer 17 is within the shared window 12, this corresponds to the case where the file icon 35 of FIG.

Here, the position information of the shared window 12 is read from the display control unit 6, and when the read position information satisfies the following conditions, it is considered “in the shared window”.
Shared window left edge <Px <Shared window right edge Shared window bottom edge <Py <Shared window top edge

  When the process proceeds from step P5 to step P6, the value of the variable Md ″ is set to a value representing “transmission”. In step P7, the file name corresponding to the file icon 31 (here, “File1”) is read from the display control unit 6 into the array Fs, and the process ends. On the other hand, when the process proceeds from step P5 to step P8, the value of the variable Md ″ is set to a value representing “reception”, and the process ends.

FIG. 26 is a flowchart of processing that is started when the mouse is dragging and moving.
In FIG. 26, first, in step P1, the display control unit 6 is instructed to delete the display of the drag icon 16 at the position indicated by the variables Dx and Dy.

  Next, in step P2, the current position information of the pointer 17 is read from the display control unit 6 into the variables Px and Py. In step P3, the display control unit 6 is instructed to display the drag icon 16 at the position indicated by the read variables Px and Py. Subsequently, in step P4, the values of the variables Px and Py are stored in the variables Dx and Dy, respectively, and the process ends.

  FIG. 27 is a flowchart of processing that is activated when the mouse is dropped. That is, the processing of Steps P1 to P6 in FIG. 27 shows processing when the file icon 31 of FIG. 20 is dropped in the shared window 12 and the file icon 34 is displayed. Further, the processes of Steps P7 to P11 show the processes when the file icon 35 of FIG. 21 is dropped outside the shared window 12 and the file icon 36 is displayed.

  In FIG. 27, first, in step P1, the display control unit 6 is instructed to delete the display of the drag icon 16 at the position indicated by the variables Dx and Dy. Next, in step P2, it is determined whether or not the value of the variable Md ″ is a value indicating “transmission”. If the value is “transmission”, the process proceeds to step P3. Otherwise, go to Step P7.

  In Step P3, it is determined whether or not the position indicated by the variables Dx and Dy is in the shared window 12, and if it is in the shared window 12, the process proceeds to Step P4. If not, the process ends. Here, the determination as to whether or not it is within the shared window 12 is performed under the same conditions as the determination in step P5 of FIG.

  When the process proceeds from step P3 to step P4, the display control unit 6 is instructed to display the file icon 34 corresponding to the file name read in the array Fs at the position indicated by the variables Dx and Dy. In step P5, the values of variables Dx and Dy are stored in variables Sx and Sy, respectively.

  In step P6, the values of the variable Cs, the variable Sx, the variable Sy, the array Fs, and the contents of the file corresponding to the file name read in the array Fs are set in the fields Cs, Sx, Sy, Fs, and Fc, respectively. Then, this is transmitted to the line control unit 8 and the process is terminated.

  On the other hand, when the process proceeds from step P2 to step P7, it is determined whether or not the position indicated by the variables Dx and Dy is within the shared window 12, and if it is within the shared window 12, the process proceeds to step P8. If not, the process ends. Whether or not the window is in the shared window 12 in step P7 is also determined under the same conditions as the determination in step P5 of FIG.

  In step P8, the display control unit 6 is instructed to delete the display of the file icon 35 at the position indicated by the variables Rx and Ry. In step P9, the file icon 35 is read into the array Fs at the position indicated by the variables Dx and Dy. The display control unit 6 is instructed to display the file icon 36 corresponding to the file name.

  Next, in step P10, the name of the temporary file is changed to the name indicated by the value of the array Fs. In step P11, the value of the variable Cr is set in the field Cr, which is transmitted to the line control unit 8 and the process is terminated.

FIG. 28 is a flowchart of processing started when the line control unit 8 receives a packet including the field Cs as shown in FIG.
First, in step P1, the values of the fields Sx, Sy, Fs received from the line control unit 8 are stored in the variable Rx, the variable Ry, and the array Fr, respectively.

  Next, in step P2, the value of the field Fc received from the line control unit 8 is stored in a temporary file, and in step P3, it corresponds to the file name read in the array Fs at the position indicated by the variables Rx and Ry. The display control unit 6 is instructed to display the file icon 35, and the process ends.

FIG. 29 is a flowchart of processing started when the line control unit 8 receives a packet including the field Cr as shown in FIG.
In this case, in step P1, the display control unit 6 is instructed to delete the display of the file icon 34 at the position indicated by the variables Sx and Sy, and the process ends.

  As described above, according to the third embodiment, when a file is transmitted from the transmission side apparatus to the reception side apparatus, the file icon corresponding to the transmission file is displayed on the transmission side apparatus, and the file is displayed on the reception side apparatus. When the reception is completed, there is provided means for deleting the display of the file icon. Therefore, when a file is transmitted from the transmission side device to the reception side device, the file icon corresponding to the transmission file is displayed on the transmission side device. When the reception of the file is completed at the receiving side device, the file icon is no longer displayed. Therefore, when a file is transmitted to the counterpart device while the communication device is in use, it is possible to confirm on the transmission side whether or not the reception of the file has been completed by the receiving device, and smooth information exchange can be performed. it can.

  In the third embodiment described above, a case is described in which the shared window 12 on the transmission side and the reception side are at the same position in the screen 11. On the other hand, relative position information of the file icon 34 in the shared window 12 on the transmission side may be transmitted to the reception side. In this way, the shared window 12 does not necessarily have to be at the same position on the transmission side and the reception side.

  In the third embodiment described above, the file icon 34 in FIG. 20 and the file icon 35 in FIG. 21 are displayed at the same position in the shared window 12 on the transmission side and the reception side. May be displayed at a fixed position (for example, the upper left corner or the center) of the shared window 12 on the receiving side.

  At this time, the variables Rx and Ry are initialized in advance with values indicating a fixed position where the file icon 35 is displayed. Also, the fields Sx and Sy are not necessary. Therefore, in step P6 of FIG. 27, the values of the fields Sx and Sy are not transmitted to the receiving side device. In step P1 in FIG. 28, the values of the fields Sx and Sy are not received, and the respective values are not stored in the variables Rx and Ry.

  In the third embodiment described above, the name of the received file is the same as that on the transmission side, but before the file icon 35 is dragged out of the shared window 12, the new name of the received file is accepted. It is also possible.

  Further, in the first to third embodiments described above, a LAN is used as the line 9 connected to the terminal, but the ISDN basic interface, the primary group interface of ISDN, the broadband ISDN, the circuit switching network, the packet switching It can also be implemented by a network, a public telephone network, a private line, a private branch exchange (PBX), or the like.

  In the first to third embodiments described above, the ROM 2 and the RAM 3 are used as storage devices for storing programs and data. However, the present invention can also be implemented on a floppy (registered trademark) disk, hard disk, IC card, or the like. it can.

  In the first to third embodiments described above, the file icons 13 to 15 are dragged to perform text expansion, image display, file transmission, and the like. The text in the text may be expanded, an image may be displayed, or a file may be transmitted. A folder is a group of files with a single name.

  In the first to third embodiments described above, text and images are transmitted in one packet. However, when the amount of text or image data is large, it is divided into a plurality of packets and transmitted. Also good.

It is a block diagram which shows the structural example of the communication apparatus in one Example of this invention. It is a figure which shows the example of a display of the display screen before text file expansion | deployment. It is a figure which shows the example of a display of the display screen after text file expansion | deployment. It is a figure which shows the memory map on RAM. It is a figure which shows the format of the packet transmitted from a line control part. It is a flowchart of the process started when the mouse is clicked. It is a flowchart of the process started at the start of the mouse drag operation. It is a flowchart of the process started when moving while dragging a mouse. It is a flowchart of the process started at the time of mouse drop operation. It is a flowchart of the process started when the packet containing a text expansion | deployment command is received. It is a figure which shows the example of a display of the display screen before image file expansion | deployment. It is a figure which shows the example of a display of the display screen after image file expansion | deployment. It is a figure which shows the memory map on RAM. It is a figure which shows the format of the packet transmitted from a line control part. It is a flowchart of the process started when the mouse is clicked. It is a flowchart of the process started at the start of the mouse drag operation. It is a flowchart of the process started when moving while dragging a mouse. It is a flowchart of the process started at the time of mouse drop operation. It is a flowchart of the process started when the packet containing an image expansion command is received. It is a figure which shows the example of a display of the display screen at the time of file transmission. It is a figure which shows the example of a display of the display screen at the time of file reception. It is a figure which shows the memory map on RAM. It is a figure which shows the format of the packet transmitted from a line control part. It is a figure which shows the other format of the packet transmitted from a line control part. It is a flowchart of the process started at the start of the mouse drag operation. It is a flowchart of the process started when moving while dragging a mouse. It is a flowchart of the process started at the time of mouse drop operation. It is a flowchart of the process started when the packet of FIG. 23 is received. It is a flowchart of the process started when the packet of FIG. 24 is received.

Explanation of symbols

1 CPU
2 ROM
3 RAM
4 External storage device 5 Operation unit 6 Display control unit 7 Display unit 8 Line control unit 9 Line 10 Bus

Claims (4)

In a display control device for displaying text data in a window displayed on a display unit,
By dragging the file icon displayed outside the window with the operating means and dropping it on the text data displayed in the window, the text data in the file corresponding to the dropped file icon is dropped. A display control device comprising display control means for inserting between characters at different positions.   The display control apparatus according to claim 1, wherein the display control means changes the file icon to a drag icon and displays the file icon during a drag operation of the file icon. In a display control method for displaying text data in a window displayed on a display unit,
By dragging the file icon displayed outside the window with the operating means and dropping it on the text data displayed in the window, the text data in the file corresponding to the dropped file icon is dropped. A display control method comprising: executing a display process for inserting between characters at different positions.   The display control method according to claim 3, wherein during the drag operation of the file icon, a process of changing the file icon to a drag icon and displaying it is executed.

Images