WO2013075477A1

WO2013075477A1 - Remote text inputting method and system

Info

Publication number: WO2013075477A1
Application number: PCT/CN2012/076995
Authority: WO
Inventors: 刘亮; 缪敬
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-11-25
Filing date: 2012-06-15
Publication date: 2013-05-30
Also published as: CN102413139A

Abstract

Provided are a remote text inputting method and system. The method includes: a client converting the text input by a user into text coding information and sending the text coding information to a serving end; and after receiving the text coding information, the serving end decoding and displaying corresponding text. By way of converting the text input by a user to a client into text coding information and sending the text coding information to a remote serving end for text display, the present invention can make the best of the text input method of the client, such as full-screen handwriting input method and so on, for remotely inputting characters, improving the user experience.

Description

Method and system for remotely inputting characters

The present invention relates to the field of remote technologies, and in particular, to a method and system for remotely inputting characters. Background technique

Remote Desktop is to pull the desktop of a host (Server) to the remote, display it on the screen of a client (Client), use the Client to operate the server, and achieve the effect of using the server locally. user experience.

The remote desktop implementation method generally takes a screen shot at the server, and appropriately processes the obtained image, such as cropping and compression, and then uses the network to transmit the image to the client, and decompresses and stitches the image in the client to restore the whole. desktop. In this way, the user sitting in front of the Client can directly operate the remote Server machine, which feels like sitting in front of the Server.

One variant of Remote Desktop is called Virtual Desktop, which is a virtual desktop. The biggest difference between Virtual Desktop Deskto and Remote Deskto is that the desktop displayed by Virtual Deskto in Client is not a real desktop. It is a virtual desktop generated by a program. This desktop may be spliced by some applications of several servers. However, Client does not know this, it is only a real desktop to display; many companies have their own remote desktop technology, we are familiar with Remote Desktop Protocol (RDP), SPICE, VNC (Virtual Network Computing ) ₀ These technologies are similar, and ultimately can be attributed to the above implementation.

At present, the operation of the text input in the personal computer (PC) is shown in Figure 1. The PC intercepts the keyboard message input by the user, sends the message to the local input method, and the local input method converts the keyboard message into text encoding information and sends it to the application. Program; such an application can display Chinese characters It is.

In a remote desktop environment, such as a PC to PC remote desktop input, its operation is shown in Figure 2; the implementation of inputting text to a remote server is generally as follows:

Client (PCI) intercepts its own keyboard message and sends this message to Server (PC2);

Server receives this keyboard message and treats it as a local (locally referred to as Server) keyboard message;

The local keyboard message is actually sent to the local input method, and the local input method converts the keyboard message into text encoding information.

Local input method 4 bar text encoding information is sent to the application; this way the application can display Chinese characters.

This process, only one difference from the local keyboard input, is that the keyboard message comes from the network and is sent from the client.

Another feature of this process is that the input actually uses the server-side local input method, not the client-side input method. The input process is actually not related to the client-side input method.

In a PC to PC remote desktop environment, typing is not a big issue because the client also has a full keyboard. However, in recent years, with the emergence and popularity of various terminals, especially the emergence of many non-PC-like terminals, such as smart phones, tablets, etc., remote desktop clients have also spread to these terminals; however, these terminals Remote desktop, it is not so easy to implement input; many mobile phones, tablets do not have a keyboard, or there is no complete keyboard. On the contrary, many smart phones and tablets and other devices are equipped with a very good touch screen, and a convenient input method is installed. For example, the full-screen handwriting input method, etc.; the current work of the touch screen device to the PC remote desktop input method is shown in Figure 3; the remote input is generally implemented like this:

In the touch screen device (client) to call up the input method, switch to English input;

Use the touch screen to point the English letters on the screen; The touch screen device input method converts these English letters into keyboard messages;

The RDP client intercepts these keyboard messages and sends them to the PC (server);

The PC receives this message and processes it as a local (locally referred to as Server) keyboard message; the local keyboard message is actually sent to the local input method, and the local input method converts the keyboard message into text encoding information;

The characteristics of this method, the same is actually the server-side local input method, not the client-side input method; only the input process is related to the client-side input method. If there is no such input method on the terminal. , it is completely impossible to simulate the keyboard;

This method only uses the simplest function of the client input method, using the English input method to simulate the keyboard; but in fact, there are many good input methods on the terminal, such as a good touch screen full-screen handwriting input. Law, Pinyin input method, etc. These input methods can be input into Chinese characters or English, but they are not fully utilized. Summary of the invention

In view of the above, it is a primary object of the present invention to provide a method and system for remotely inputting text, which can fully utilize the text input method of the client to implement remote text input.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for remotely inputting text, the method comprising:

The client converts the text input by the user into text encoding information, and sends the text encoding information to the server;

After receiving the text encoding information, the server decodes and displays the corresponding text.

Further, the method further includes:

The client and the server are connected to each other.

The client and the server are connected to each other as: The client uses Remote Desktop Protocol (RDP) to communicate with the server over the IP network. The client sends the text encoding information to the server:

The client sends the text encoding information to the server through the pre-established RDP extension channel Ime Channel.

After receiving the text encoding information, the server decodes and displays the corresponding text as:

The server receives the text encoding information through an Ime Channel of the pre-established RDP, and decodes and displays the text encoding information by using an application.

A system for remotely inputting text, the system comprising: a client and a server; wherein the client is configured to convert text input by the user into text encoding information, and send the text encoding information to the server ;

The server is configured to receive the text encoding information, decode and display the corresponding text. The client and the server are connected to each other.

The client is specifically configured to communicate with the server through an IP network by using an RDP.

The client is specifically configured to send the text encoding information to the server through the Ime Channel of the pre-established RDP.

The server is specifically configured to receive the text encoding information through an Ime Channel of a pre-established RDP, and decode and display the text encoding information by using an application.

The invention converts the text input by the user on the client into the text encoding information, sends the text encoding information to the remote server, and then displays the text, and can fully utilize the text input method of the client, such as full-screen handwriting input method, etc. Remote input of Chinese characters, improved user body DRAWINGS

Figure 1 is a schematic diagram of the operation of the existing PC input method;

Figure 2 is a schematic diagram of the operation of the remote desktop input method of the existing PC to PC;

3 is a schematic diagram of a working process of a remote desktop input method of a conventional touch screen device to a PC; FIG. 4 is a schematic diagram showing an implementation flow of a method for remotely inputting text according to the present invention;

FIG. 5 is a schematic structural diagram of a system for remotely inputting characters according to the present invention; FIG.

FIG. 6 is a schematic diagram showing the working process of a specific embodiment of a method for remotely inputting text according to the present invention. detailed description

The basic idea of the present invention is: the client converts the text input by the user into text encoding information, and sends the text encoding information to the server; after receiving the text encoding information, the server decodes and displays the corresponding text.

The present invention will be further described in detail below with reference to the accompanying drawings.

4 shows an implementation flow of a method for remotely inputting text according to the present invention. As shown in FIG. 4, the method includes the following steps:

Step 401: The client converts the text input by the user into text encoding information, and sends the text encoding information to the server;

Specifically, the client first uses the RDP to communicate with the server through the IP network. Here, the IP network may be a wireless network data channel, such as GPRS, or may be a WIFI, a wireless LAN authentication and privacy infrastructure (Wireless LAN Authentication and Privacy Infrastructure, WAPI), etc.; where the server establishes the RDP extension channel Ime Channel, the client starts the RDP client, and opens the Ime Channel;

The client intercepts the keyboard message input by the user according to the local input method, and converts it into text encoding information, which may be represented by a Unicode code, and then sends the text encoding information to the server through the Ime Channel of the RDP. Step 402: After receiving the text encoding information, the server decodes and displays the corresponding text. The server receives the text encoding information through the Ime Channel of the pre-established RDP, and decodes and displays the text encoding information by using an application.

The present invention also provides a system for remotely inputting characters. The structure of the remote input text system is as shown in FIG. 5, and includes: a client and a server; wherein the client may be a touch device. The server may specifically be a PC;

The client is configured to convert text input by the user into text encoding information, and send the text encoding information to the server;

The server is configured to receive the text encoding information, decode and display the corresponding text. Further, the client and the server are in communication with each other.

Further, the client is specifically configured to send the text encoding information to the server through the Ime Channel of the pre-established RDP.

The working process of the specific embodiment of the method for remotely inputting characters according to the present invention shown in FIG. 6 will be further described in detail through a specific embodiment:

Step 1: Establish an RDP extension channel on the server, and specifically use the WTSVirtualChannelOpen function. In this embodiment, the name of the extended channel is defined as "IMECHNL";

The server may specifically be a PC with a Microsoft Windows XP system. Step 2: Open the extension channel "IMECHNL" on the client, which can be implemented by using the VirtualChannelOpen function. Among them, the 1⁄2 terminal can be a touch device with an Android system; after the second step, the RDP Client program can be used to connect to the RDP Server on the Android touch device, and the PC with the Microsoft Windows XP system can be seen on the Android device. On the desktop, you can do the following.

Step 3: The client intercepts the Chinese input by the input method according to the touch message input by the user, and converts it into text encoding information through an input connection (InputConnection) object;

The specific methods are: 1. Define the InputConnection class, inherit from the BascInputComicction class, in this class, overload the commitText function, the specific implementation is as follows:

Public MyInputConnection(View tv) {

Super(tv, false);

©Override

Public boolean commitText(CharSequence text, newCursorPo sition) {

WTSVirtualChannelWrite ("IMECHNL", text.toStringO); return true;

2, overload the View's onCreatelnputConnection function, in this function returns the InputConnection object defined above;

Public InputConnection onCreateInputConnection(EditorInfo outAttrs) return new MylnputConnection(this); Step 4: The RDP client of the client sends the converted text encoding information to the server through the RDP extension channel IMECHNL;

Specifically, the above has overloaded the commitText function. This function is automatically called by the Android system when inputting Chinese input method; WTSVirtualChannelWrite function is used when sending information; the information sent is text encoding information, which can be Unicode encoded characters. String

Step 5: The server receives the text encoding information from the RDP extension channel; specifically, the VirtualChannelRead function may be used when receiving the data;

Step 6: The RDP server of the server sends the received text encoding information to the application; the specific method is as follows: 1. Obtain the current window handle: HWND hwnd = GetForegroundWindow();

2, send a message to the current window: SendMessage (hwnd, WM_IME_CHAR, 0x4e2d,

1);

The above code demonstrates sending a Unicode character to the current window, the encoding is 0x4e2d, which is the "medium" word; thus, the application can display the input Chinese characters;

The method and system of the present invention take the client as an Android tablet device as an example; it should be understood that the method described in the present invention can also be applied to other similar devices.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for remotely inputting a character, the method comprising: converting, by a client, text input by a user into text encoding information, and transmitting the text encoding information to a server;

2. The method according to claim 1, wherein the method further comprises: the client and the server are in communication with each other.

3. The method according to claim 2, wherein the client and the server are interconnected as:

The client uses the remote desktop protocol RDP to communicate with the server through the IP network.

The method according to claim 1, wherein the client sends the text encoding information to the server:

The method according to claim 1, wherein after receiving the text encoding information, the server decodes and displays the corresponding text as:

6. A system for remotely inputting a character, wherein the system comprises: a client and a server; wherein

The server is configured to receive the text encoding information, decode and display the corresponding text.

7. The system according to claim 6, wherein the client and the server are in communication with each other.

The system according to claim 7, wherein the client is specifically configured to communicate with the server through an IP network by using an RDP.

The system according to claim 6, wherein the client is specifically configured to send the text encoding information to the server through the Ime Channel of the pre-established RDP.

The system according to claim 6, wherein the server is specifically configured to receive the text encoding information through an Ime Channel of a pre-established RDP, and decode the text encoding information by using an application program. And display.