CN104317485A - Display control method and display control device for electronic blackboards - Google Patents
Display control method and display control device for electronic blackboards Download PDFInfo
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- CN104317485A CN104317485A CN201410597431.0A CN201410597431A CN104317485A CN 104317485 A CN104317485 A CN 104317485A CN 201410597431 A CN201410597431 A CN 201410597431A CN 104317485 A CN104317485 A CN 104317485A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04817—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
Abstract
The invention relates to a display control method and a display control device for electronic blackboards. The display control method includes steps of creating operation control components of the electronic blackboards are preset initial positions of the edges of screens; displaying writing electronic blackboard windows when display instructions of the operation control components are triggered by operation points, and setting the electronic blackboard windows on the tops of the screens; concealing the electronic blackboard windows at the initial positions when preset concealment conditions are met, and displaying the operation control components at the initial positions. The display control method and the display control device have the advantages that virtual blackboard operation can be switched over by the aid of the display control method for the virtual blackboards without withdrawing other teaching software from full-screen display modes under the condition that the virtual blackboards and the other teaching application software are simultaneously utilized, so that required execution steps in electronic blackboard and other teaching application software switching procedures can be simplified for operators, and the switching efficiency can be improved; the switching time can be greatly saved for the operators under multi-switching or repeated switching conditions.
Description
[technical field]
The present invention relates to human-computer interaction intelligent technology, particularly relate to a kind of electronic blackboard display control method and device.
[background technology]
Along with the development of Modern Education Technology and the attention to teaching job environment, increasing educational institution brings into use interactive intelligent flat board to replace the instrument of blackboard as teaching explanation of common chalk-writing.Interactive intelligent tablet computer with high-definition liquid crystal screen for display and operating platform, possess write, annotate and comment on, paint, the modern multimedia instructional function such as multimedia.Wherein, the writing function of interactive intelligent flat board is mainly realized by the electronic blackboard of internal virtual, and electronic blackboard writes window as one, and its background color can be the same with blackboard common at present, also can be virtual electronic whiteboard.The realization of electronic blackboard has greatly promoted the universal of multimedia education, and improves the efficiency of teaching of teachers' instruction, improves teachers' instruction environment.
Due in multimedia teaching, teacher also needs the teaching application software using other, such as music player, video player, lantern slide (PowerPoint) and form (Excel) etc. except using electronic blackboard.
For lantern slide, if teacher wants to use electronic blackboard when use lantern slide, now then need lantern slide to exit full frame, then click and select to show electronic blackboard, when needs show lantern slide again, after needing again electronic blackboard to exit, could select to show lantern slide.Therefore, electronic blackboard and lantern slide need when switching reciprocal to exit operations such as reselecting, and the switching of electronic blackboard and other application software of imparting knowledge to students also is like this.So teacher or operator are in the middle of the process switching electronic blackboard and other application software of imparting knowledge to students, need the operation of execution too much, process exception is loaded down with trivial details, repeatedly switches and easily causes teachers ' teaching waste of time.
[summary of the invention]
Based on this, be necessary to switch loaded down with trivial details problem for electronic blackboard and other application programs, a kind of electronic blackboard display control method and device be provided, make electronic blackboard can with the interface of other application programs switch application program rapidly.
A kind of electronic blackboard display control method, comprises step:
The operational controls that initial position creates electronic blackboard is preset at screen edge;
When the idsplay order of operating point trigger action control, show the electronic blackboard window for writing, and by described electronic blackboard window top set;
When meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
Correspondingly, a kind of switching device shifter of electronic blackboard, comprising:
Control creation module, creates the operational controls of electronic blackboard for presetting initial position at screen edge;
Display module, for when the idsplay order of operating point trigger action control, shows the electronic blackboard window for writing, and by described electronic blackboard window top set;
Hide module, for when meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
First the present invention presets at screen edge the operational controls that initial position creates electronic blackboard; This operational controls can accept the operational order of user, controls the display of virtual blackboard window.When the idsplay order of operating point trigger action control, show the electronic blackboard window for writing, and by described electronic blackboard window top set; When meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.Because described operational controls is created in screen edge locations, stop, as the electronic blackboard window for writing need be shown, by the idsplay order of operating point trigger action control so this operational controls can not be formed other teaching software in screen; When described electronic blackboard window is presented at screen, as other teaching application software need be used then hidden conditional can be triggered, hide described electronic blackboard window to described initial position.Virtual blackboard display control method described in the application of the invention, under being used in virtual blackboard and other application software situations of imparting knowledge to students at the same time, without the need to other teaching softwares are exited the operation that full screen display can realize switching virtual blackboard, can the step that performs required in the middle of the process switching electronic blackboard and other application software of impart knowledge to students of the person of simplifying the operation, raising switching efficiency.When repeatedly switching or repeat to switch, the switching time of operator greatly can be saved.
[accompanying drawing explanation]
Fig. 1 is the process flow diagram of a kind of embodiment of electronic blackboard display control method of the present invention;
Fig. 2 is the schematic diagram of a kind of application scenarios of electronic blackboard of the present invention;
Fig. 3 is electronic blackboard of the present invention procedure for displaying schematic diagram in the application scenarios of Fig. 2;
Fig. 4 is the structured flowchart of a kind of embodiment of electronic blackboard display control program of the present invention.
[embodiment]
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 1, it is the process flow diagram of a kind of embodiment of electronic blackboard display control method of the present invention.
A kind of electronic blackboard display control method, is characterized in that, comprise step:
S101: preset the operational controls that initial position creates electronic blackboard at screen edge;
The operational controls of electronic blackboard can be created while os starting, first, create the operational controls of electronic blackboard, then obtain the coordinate that screen edge presets initial position, finally show described operational controls according to the coordinate of initial position at described initial position.In addition, this operational controls top set can also be shown, so that described operational controls is presented at the foremost of window in all screens, do not blocked by the window of any application software.
Preferably, described operational controls is WPF (Windows Presentation Foundation, form presents basis) forms.WPF forms are translucent forms, farthest can reduce blocking other teaching application software.As shown in Figure 2, in the application scenarios of Fig. 2, operational controls is circular button, and be positioned in the middle part of screen upper end-face edge, this operational controls is translucent window.Those skilled in the art, also can be set to other shapes by operational controls, also operational controls can be presented at other position of screen edge.
S102: when the idsplay order of operating point trigger action control, shows the electronic blackboard window for writing, and by described electronic blackboard window top set;
When the idsplay order of operating point trigger action control, can judge that user or operator need the electronic blackboard window for writing to be presented at screen.As shown in Figure 3, described electronic blackboard window may be displayed on the region that screen specifies, such as be presented at screen centerline to the region of screen edge or be presented at center Screen region, also can adjust display position and the size of described electronic blackboard window according to the selection of user.Described operational controls can be followed electronic blackboard window and is presented in screen.After showing the electronic blackboard window for writing, by described electronic blackboard window top set, by amendment, the window attribute of described electronic blackboard window being set to top set and realizing.By described electronic blackboard window top set, so that described electronic blackboard window is presented at the foremost of window in all screens, do not blocked by the window of any application software.Described operating point can be touch point, mouse point, electronic pen contact point etc.
Preferably, described electronic blackboard window is WPF forms.WPF forms are translucent forms, can see the content of next display layer in screen through WPF forms.When described electronic blackboard is WPF forms, when electronic blackboard window is presented at screen, other teaching application software also can use, the situation that minimizing electronic blackboard window and other application software of imparting knowledge to students switch.Such as, when using lantern slide broadcasting and electronic blackboard window to write simultaneously, and electronic blackboard window there is no and covers lantern slide completely, now can be write by electronic blackboard window on the one hand, WPF forms can not stop the content of lantern slide on the other hand, operator still can to the operation carrying out the broadcastings such as lower one page broadcasting and displaying lantern slide, therefore, in non-essential situation, electronic blackboard window need not be hidden to show lantern slide by operator, decreases the situation that electronic blackboard window and other application software of imparting knowledge to students switch.
S103: when meeting default hidden conditional, hides described electronic blackboard window to described initial position, and shows described operational controls at described initial position.
Described hidden conditional comprises electronic blackboard window and is presented on screen and operating point triggers and hides instruction, and wherein, described hiding instruction can be to the clicking of operational controls, double-click, the instruction preset toward the slip etc. in screen edge direction.
When meeting default hidden conditional, then can judge that user or operator wish hiding electronic blackboard window, now hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
First the present invention presets at screen edge the operational controls that initial position creates electronic blackboard; This operational controls can accept the operational order of user, controls the display of virtual blackboard window.When the idsplay order of operating point trigger action control, show the electronic blackboard window for writing, and by described electronic blackboard window top set; When meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.Because described operational controls is created in screen edge locations, stop, as the electronic blackboard window for writing need be shown, by the idsplay order of operating point trigger action control so this operational controls can not be formed other teaching software in screen; When described electronic blackboard window is presented at screen, as other teaching application software need be used then hidden conditional can be triggered, hide described electronic blackboard window to described initial position.Virtual blackboard display control method described in the application of the invention, under being used in virtual blackboard and other application software situations of imparting knowledge to students at the same time, without the need to other teaching softwares are exited the operation that full screen display can realize switching virtual blackboard, can the step that performs required in the middle of the process switching electronic blackboard and other application software of impart knowledge to students of the person of simplifying the operation, raising switching efficiency.When repeatedly switching or repeat to switch, the switching time of operator greatly can be saved.
In one embodiment, in above-mentioned steps S102, showing the step of the electronic blackboard window for writing, can comprise the following steps:
S201: if described idsplay order is for dragging instruction, then upgrade the display position of described electronic blackboard window in the displacement of assigned direction according to operating point;
Wherein, described dragging instruction is that slide described operational controls or desired guiding trajectory of preset direction slides described operational controls.
When described idsplay order is dragging instruction, now with described initial position for benchmark, upgrade the display position of described electronic blackboard window in the displacement of assigned direction according to operating point, such as, when operational controls is presented at the frequency curtain edge on right side, assigned direction should be left screen edge direction, and display position should be the screen area of operating point to initial position.As shown in Figure 3, when operational controls is dragged, the screen area of position (screen upper end-face edge) full wafer of operational controls position in Fig. 3 of viewing area operational controls from Fig. 2 of virtual blackboard window.
Upgrade the display position of described electronic blackboard window according to operating point in the displacement of assigned direction, make described electronic blackboard window situation can change viewing area according to the actual requirements, increase the applicability of described electronic blackboard.
In one embodiment, preferably, in above-mentioned steps S201, upgrade the step of the display position of described electronic blackboard window according to operating point in the displacement of assigned direction, can comprise the following steps:
S301: the displacement of record operating point, and calculate the projection value of described displacement at assigned direction;
Follow the trail of the track of operating point, according to the displacement of the reference position record operating point of operating point, then calculate the projection value of described displacement at assigned direction, to obtain the drift condition of operating point at assigned direction.
S302: the position coordinates upgrading electronic blackboard window forms initial point according to described projection value, and show described electronic blackboard window according to the position coordinates upgrading rear forms initial point.
Because operating point changes, correspondingly, upgrade the position coordinates of electronic blackboard window forms initial point according to described projection value, then electronic blackboard window with described forms initial point for benchmark shows described electronic blackboard window.
By recording the displacement of operating point, calculate the projection value of displacement at assigned direction, the position coordinates of electronic blackboard window forms initial point is upgraded according to described projection value, then electronic blackboard window with described forms initial point for benchmark shows described electronic blackboard window, make the step of the display position upgrading described electronic blackboard window according to operating point in the displacement of assigned direction pass more readily software simulating.
In one embodiment, preferably, the step of the displacement of record operating point, can comprise the following steps:
S401: record drags the position coordinates (X, Y) of initial time operating point, and record drags the position coordinates (X1, Y1) of finish time operating point;
For the screen using touch screen operation, drag the position coordinates (X of initial time operating point, Y) can be finger or electronic pen coordinate when clicking operational controls, the position coordinates (X1, Y1) dragging finish time operating point can be finger or electronic pen unclamp the position in moment coordinate from touch-screen.
For the screen making mouse-based operation, drag the position coordinates (X of initial time operating point, coordinate when can be Y) mouse clicking operation control, the position coordinates (X1, Y1) dragging finish time operating point can be the coordinate of mouse when unclamping from operational controls.
S402: calculate according to formula (X1-X, Y1-Y) and record the displacement of described operating point.
Obtain the position coordinates (X dragging initial time operating point, Y) and drag finish time operating point position coordinates (X1, Y1) after, by formula (X1-X, Y1-Y) calculate the displacement of described operating point, and record this displacement.
The present embodiment is by setting up coordinate system to screen, obtain the position coordinates dragging initial time operating point and the position coordinates dragging finish time operating point, and by vector calculation formula, calculate the displacement of described operating point, namely the displacement of vector representation operating point is used, can easily displacement calculating, make the present invention easier and more convenient realization.
Refer to Fig. 4, it is the structured flowchart of a kind of embodiment of electronic blackboard display control program of the present invention.
A switching device shifter for electronic blackboard, comprising:
Control creation module 401, creates the operational controls of electronic blackboard for presetting initial position at screen edge;
Control creation module 401 can create the operational controls of electronic blackboard while os starting, first, control creation module 401 creates the operational controls of electronic blackboard, then control creation module 401 obtains the coordinate that screen edge presets initial position, and last control creation module 401 shows described operational controls according to the coordinate of initial position at described initial position.In addition, this operational controls top set can also show by control creation module 401, so that described operational controls is presented at the foremost of window in all screens, is not blocked by the window of any application software.
Preferably, described operational controls is WPF (Windows Presentation Foundation, form presents basis) forms.WPF forms are translucent forms, farthest can reduce blocking other teaching application software.As shown in Figure 2, in the application scenarios of Fig. 2, operational controls is circular button, and be positioned in the middle part of screen upper end-face edge, this operational controls is translucent window.Those skilled in the art, also can be set to other shapes by operational controls, also operational controls can be presented at other position of screen edge.
Display module 402, for when the idsplay order of operating point trigger action control, shows the electronic blackboard window for writing, and by described electronic blackboard window top set;
When the idsplay order of operating point trigger action control, display module 402 can judge that user or operator need the electronic blackboard window for writing to be presented at screen.As shown in Figure 3, described electronic blackboard window may be displayed on the region that screen specifies, such as be presented at screen centerline to the region of screen edge or be presented at center Screen region, also can adjust display position and the size of described electronic blackboard window according to the selection of user.Described operational controls can be followed electronic blackboard window and is presented in screen.After display module 402 shows the electronic blackboard window for writing, by described electronic blackboard window top set, by amendment, the window attribute of described electronic blackboard window being set to top set and realizing.Display module 402, by described electronic blackboard window top set, so that described electronic blackboard window is presented at the foremost of window in all screens, is not blocked by the window of any application software.Described operating point can be touch point, mouse point, electronic pen contact point etc.
Preferably, described electronic blackboard window is WPF forms.WPF forms are translucent forms, can see the content of next display layer in screen through WPF forms.When described electronic blackboard is WPF forms, when electronic blackboard window is presented at screen, other teaching application software also can use, the situation that minimizing electronic blackboard window and other application software of imparting knowledge to students switch.Such as, when using lantern slide broadcasting and electronic blackboard window to write simultaneously, and electronic blackboard window there is no and covers lantern slide completely, now can be write by electronic blackboard window on the one hand, WPF forms can not stop the content of lantern slide on the other hand, operator still can to the operation carrying out the broadcastings such as lower one page broadcasting and displaying lantern slide, therefore, in non-essential situation, electronic blackboard window need not be hidden to show lantern slide by operator, decreases the situation that electronic blackboard window and other application software of imparting knowledge to students switch.
Hide module 403, for when meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
Described hidden conditional comprises electronic blackboard window and is presented on screen and operating point triggers and hides instruction, and wherein, described hiding instruction can be to the clicking of operational controls, double-click, the instruction preset toward the slip etc. in screen edge direction.
When meeting default hidden conditional, then hide module 403 and can judge that user or operator wish hiding electronic blackboard window, now hide described electronic blackboard window to described initial position, and show described operational controls at described initial position.
The present invention first control creation module 401 presets at screen edge the operational controls that initial position creates electronic blackboard; This operational controls can accept the operational order of user, controls the display of virtual blackboard window.When the idsplay order of operating point trigger action control, display module 402 shows the electronic blackboard window for writing, and by described electronic blackboard window top set; When meeting default hidden conditional, hiding module 403 and hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.Because described operational controls is created in screen edge locations, stop, as the electronic blackboard window for writing need be shown, by the idsplay order of operating point trigger action control so this operational controls can not be formed other teaching software in screen; When described electronic blackboard window is presented at screen, as other teaching application software need be used then hidden conditional can be triggered, hide described electronic blackboard window to described initial position.Virtual blackboard display control unit described in the application of the invention, under being used in virtual blackboard and other application software situations of imparting knowledge to students at the same time, without the need to other teaching softwares are exited the operation that full screen display can realize switching virtual blackboard, can the step that performs required in the middle of the process switching electronic blackboard and other application software of impart knowledge to students of the person of simplifying the operation, raising switching efficiency.When repeatedly switching or repeat to switch, the switching time of operator greatly can be saved.
In one embodiment, above-mentioned display module 403, comprises following submodule.
Drag display module, if for when described idsplay order is for dragging instruction, upgrade the display position of described electronic blackboard window in the displacement of assigned direction according to operating point;
Wherein, described dragging instruction is that slide described operational controls or desired guiding trajectory of preset direction slides described operational controls.
When described idsplay order is dragging instruction, now with described initial position for benchmark, drag display module upgrades described electronic blackboard window in the displacement of assigned direction display position according to operating point, such as, when operational controls is presented at the frequency curtain edge on right side, assigned direction should be left screen edge direction, and display position should be the screen area of operating point to initial position.As shown in Figure 3, when operational controls is dragged, the screen area of position (screen upper end-face edge) full wafer of operational controls position in Fig. 3 of viewing area operational controls from Fig. 2 of virtual blackboard window.
Drag display module upgrades described electronic blackboard window in the displacement of assigned direction display position according to operating point, make described electronic blackboard window situation can change viewing area according to the actual requirements, increase the applicability of described electronic blackboard.
In one embodiment, above-mentioned dragging display module, can comprise following submodule.
Displacement record module, for recording the displacement of operating point, and calculates the projection value of described displacement at assigned direction;
Displacement record module follows the trail of the track of operating point, and according to the displacement of the reference position record operating point of operating point, then displacement record module calculates the projection value of described displacement at assigned direction, to obtain the drift condition of operating point at assigned direction.
Upgrade display module, for upgrading the position coordinates of electronic blackboard window forms initial point according to described projection value, and show described electronic blackboard window according to the position coordinates after upgrading.
Because operating point changes, correspondingly, upgrade display module upgrades electronic blackboard window forms initial point position coordinates according to described projection value, then electronic blackboard window with described forms initial point for benchmark shows described electronic blackboard window.
By the displacement of displacement record module record operating point, calculate the projection value of displacement at assigned direction, upgrade display module upgrades electronic blackboard window forms initial point position coordinates according to described projection value, then electronic blackboard window with described forms initial point for benchmark shows described electronic blackboard window, make the step of the display position upgrading described electronic blackboard window according to operating point in the displacement of assigned direction pass more readily software simulating.
In one embodiment, above-mentioned displacement record module, can comprise following submodule:
Coordinate record module, for recording the position coordinates (X, Y) dragging initial time operating point, and record drags the position coordinates (X1, Y1) of finish time operating point;
For the screen using touch screen operation, position coordinates (the X of the dragging initial time operating point of coordinate record module record, Y) can be finger or electronic pen coordinate when clicking operational controls, the position coordinates (X1, Y1) dragging finish time operating point can be finger or electronic pen unclamp the position in moment coordinate from touch-screen.
For the screen making mouse-based operation, position coordinates (the X of the dragging initial time operating point of coordinate record module, coordinate when can be Y) mouse clicking operation control, the position coordinates (X1, Y1) dragging finish time operating point can be the coordinate of mouse when unclamping from operational controls.
Displacement computing module, for calculating according to formula (X1-X, Y1-Y) and recording the displacement of described operating point.
Obtain the position coordinates (X dragging initial time operating point, Y) and after the position coordinates (X1, Y1) dragging finish time operating point, displacement computing module is by formula (X1-X, Y1-Y) calculate the displacement of described operating point, and record this displacement.
The present embodiment sets up coordinate system by coordinate record module to screen, obtain the position coordinates dragging initial time operating point and the position coordinates dragging finish time operating point, displacement computing module is by vector calculation formula, calculate the displacement of described operating point, namely the displacement of vector representation operating point is used, can easily displacement calculating, make the present invention easier and more convenient realization.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. an electronic blackboard display control method, is characterized in that, comprises step:
The operational controls that initial position creates electronic blackboard is preset at screen edge;
When the idsplay order of operating point trigger action control, show the electronic blackboard window for writing, and by described electronic blackboard window top set;
When meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
2. electronic blackboard display control method according to claim 1, is characterized in that, when the idsplay order of operating point trigger action control, showing the electronic blackboard window step for writing, comprising step:
If described idsplay order is for dragging instruction, then upgrade the display position of described electronic blackboard window in the displacement of assigned direction according to operating point, wherein, described dragging instruction is that slide described operational controls or desired guiding trajectory of preset direction slides described operational controls.
3. electronic blackboard display control method according to claim 2, is characterized in that, the described step upgrading the display position of described electronic blackboard window according to operating point in the displacement of assigned direction, specifically comprises:
The displacement of record operating point, and calculate the projection value of described displacement at assigned direction;
Upgrade the position coordinates of electronic blackboard window forms initial point according to described projection value, and show described electronic blackboard window according to the position coordinates after upgrading.
4. the electronic blackboard display control method according to any one of claims 1 to 3, is characterized in that, described electronic blackboard is WPF forms.
5. a switching device shifter for electronic blackboard, is characterized in that, comprising:
Control creation module, creates the operational controls of electronic blackboard for presetting initial position at screen edge;
Display module, for when the idsplay order of operating point trigger action control, shows the electronic blackboard window for writing, and by described electronic blackboard window top set;
Hide module, for when meeting default hidden conditional, hiding described electronic blackboard window to described initial position, and showing described operational controls at described initial position.
6. electronic blackboard display control unit according to claim 5, is characterized in that, described display module comprises:
Drag display module; if for when described idsplay order is for dragging instruction; upgrade the display position of described electronic blackboard window in the displacement of assigned direction according to operating point, wherein, described dragging instruction is that slide described operational controls or desired guiding trajectory of preset direction slides described operational controls.
7. electronic blackboard display control unit according to claim 6, is characterized in that, described dragging display module comprises:
Displacement record module, for recording the displacement of operating point, and calculates the projection value of described displacement at assigned direction;
Upgrade display module, for upgrading the position coordinates of electronic blackboard window forms initial point according to described projection value, and show described electronic blackboard window according to the position coordinates after upgrading.
8. the electronic blackboard display control unit according to any one of claim 5-7, is characterized in that, described electronic blackboard window is WPF forms.
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| CN106383642A (en) * | 2016-09-09 | 2017-02-08 | 北京金山安全软件有限公司 | Display method and related device for control of media playing interface |
| CN107643856A (en) * | 2017-07-26 | 2018-01-30 | 上海宏古网络科技有限公司 | It is easy to switch the touch-screen of imaging system |
| CN108536366A (en) * | 2018-03-28 | 2018-09-14 | 维沃移动通信有限公司 | A kind of application window method of adjustment and terminal |
| WO2021068366A1 (en) * | 2019-10-09 | 2021-04-15 | 广州视源电子科技股份有限公司 | Writing operation method and device for intelligent interactive whiteboard, apparatus, and storage medium |
| CN113382052A (en) * | 2021-06-01 | 2021-09-10 | 广州朗国电子科技有限公司 | Electronic blackboard control system and method based on cloud |
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