Desktop Functions:

   Smart Device Functions:

Show Recent Changes
Subscribe (RSS)
Misc. Pages
Helpful Tools
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
immgetcontext (imm32)
TODO - a short description

C# Signature:

[DllImport("Imm32.dll", SetLastError=true)]
public static extern IntPtr ImmGetContext(IntPtr hWnd);

VB Signature:

Declare Function ImmGetContext Lib "Imm32.dll" (TODO) As TODO

User-Defined Types:



See also ImmGetConversionList function page

Tips & Tricks:

Please add some!

Sample Code:

public class ImeForm : System.Windows.Forms.Form
    public static extern IntPtr ImmGetContext(IntPtr hwnd);
    public static extern bool ImmGetOpenStatus(IntPtr himc);
    public static extern bool ImmSetOpenStatus(IntPtr himc, bool b);
    public static extern bool ImmGetConversionStatus(IntPtr himc, ref int lpdw, ref int lpdw2);
    public static extern int ImmSimulateHotKey(IntPtr hwnd, int lngHotkey);
    private const int IME_CMODE_FULLSHAPE = 0x8;
    private const int IME_CHOTKEY_SHAPE_TOGGLE = 0x11;
    protected override void OnActivated(EventArgs e)
        IntPtr HIme = ImmGetContext(this.Handle);
        if (ImmGetOpenStatus(HIme))  //如果输入法处于打开状态
        int iMode = 0;
        int iSentence = 0;
        bool bSuccess = ImmGetConversionStatus(HIme, ref iMode, ref iSentence);  //检索输入法信息
        if (bSuccess)
            if ((iMode & IME_CMODE_FULLSHAPE) > 0)   //如果是全角
            ImmSimulateHotKey(this.Handle, IME_CHOTKEY_SHAPE_TOGGLE);  //转换成半角


Alternative Managed API:

Do you know one? Please contribute it!


Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

Access directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version