.

The GUITHREADINFO structure contains information about a graphical user interface (GUI) thread. For example you can get the caret (blinking cursor in textfields) position

.

public struct GUITHREADINFO

.

Structure GUITHREADINFO

.

Documentation

[GUITHREADINFO] on MSDN

.

Summary

The GetGUIThreadInfo API

.

static extern bool GetGUIThreadInfo(uint idThread, ref GUITHREADINFO lpgui);

.

    public struct GUITHREADINFO

.

GUITHREADINFO threadInfo = new GUITHREADINFO();

.

GetGUIThreadInfo( 0, out threadInfo );

.

    public static extern bool GetGUIThreadInfo(uint idThread, ref GUITHREADINFO lpgui);

.

    public struct GUITHREADINFO

.

        Win32API.GUITHREADINFO guiThreadInfo = new Win32API.GUITHREADINFO();

.

        guiThreadInfo.cbSize = Marshal.SizeOf(guiThreadInfo);

.

        Win32API.GetGUIThreadInfo(dwThreadId, ref guiThreadInfo);

.

        hWnd = guiThreadInfo.hwndActive;

.

    // Thanks to this StackOverflow question: http://stackoverflow.com/questions/719825/calling-getguithreadinfo-via-p-invoke

.

    internal struct GuiThreadInfo

.

        internal static extern bool GetGUIThreadInfo(uint idThread, ref GuiThreadInfo lpgui);

.

        var info = new GuiThreadInfo();

.

        if(!GetGUIThreadInfo(0, ref info))

.

Documentation

[GetGUIThreadInfo] on MSDN