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This article will explain in detail how to achieve on-screen word selection in C#. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Kingsoft Ciba component implements C# screen word extraction

There is a XdictGrb.dll in Kingsoft word 2005 to add a reference.

Using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Text; using System.Windows.Forms; using XDICTGRB;// Kingsoft Ciba component namespace WindowsApplication1 {public partial class Form1: Form,IXDictGrabSink {public Form1 () {InitializeComponent () } private void Form1_Load (object sender, EventArgs e) {GrabProxy gp = new GrabProxy (); gp.GrabInterval = 1 gp.GrabEnabled / refers to the grab time interval gp.GrabMode = XDictGrabModeEnum.XDictGrabMouse;// sets the attribute of the word gp.GrabEnabled = true;// whether to take the attribute of the word gp.AdviseGrab (this) } / / implementation of the interface int IXDictGrabSink.QueryWord (string WordString, int lCursorX, int lCursorY, string SentenceString, ref int lLoc, ref int lStart) {MessageBox.Shos (SentenceString); / / statement return 1;}

Other methods to extract words on screen: Nhw32.dll method

This is a component written by C++.

Nhw32.dll mainly leads to two functions:

1. DWORD WINAPI BL_SetFlag32 (UINT nFlag

HWND hNotifyWnd

Int MouseX

Int MouseY)

Features:

Start or stop picking words.

Parameters:

NFlag

[input] specify one of the following values:

GETWORD_ENABLE: start taking words. Set this flag before redrawing the area of the picked word. Nhw32.dll is through the

Redraw the word area and intercept TextOutA, TextOutW, ExtTextOutA

ExtTextOutW and other Windows API function parameters to take words.

GETWORD_DISABLE: stop taking words.

HNotifyWnd

[input] Notification window handle. When this time is picked up, a registration message: GWMSG_GETWORDOK is sent to the notification window.

MouseX

[input] specify the X coordinate of the word point.

MouseY

[input] specify the Y coordinate of the pick-up point.

Return value:

Negligible.

2. DWORD WINAPI BL_GetText32 (LPSTR lpszCurWord

Int nBufferSize

LPRECT lpWordRect)

Features:

Remove the word text string from the internal buffer. For English text, the function takes out at most three English word strings bounded by spaces in a line, and terminates the word selection if it encounters spaces, non-English letters and punctuation marks other than'-'. For Chinese character text, the function takes out a line of Chinese character string at most, and terminates taking words if English letters, punctuation marks and other non-Chinese characters are encountered. This function cannot fetch both English and Chinese characters.

Parameters:

LpszCurWord

[input] destination buffer pointer.

NBufferSize

[input] destination buffer size.

LpWordRect

[output] A pointer to the RECT structure. This structure defines the rectangular area in which the word is taken.

Return value:

The position of the current cursor in all words.

In addition, the WinNT/2000 version of nhw32.dll leads to two other functions:

1. BOOL WINAPI SetNHW32 ()

Features:

Initialization function under Win NT/2000 environment. It is usually called once at the beginning of the program.

Parameters:

None.

Return value:

If TRUE succeeds, FALSE fails.

2. BOOL WINAPI ResetNHW32 ()

Features:

De-initialize the function in Win NT/2000 environment. Usually called at the end of the program.

Parameters:

None.

Return value:

If TRUE succeeds, FALSE fails.

This is the end of this article on "how to achieve on-screen lexicography of C#". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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