win32.cs

语音视频功能 里面实现了基本的QQ与语音对话

using System;
using System.Runtime.InteropServices;

using System.Drawing;


namespace ZBobb
{
	/// <summary>
	/// Win32 support code.
	/// (C) 2003 Bob Bradley / [e-mail]
	/// </summary>
	public class win32
	{
		 
		public const int  WM_MOUSEMOVE      =              0x0200;
		public const int  WM_LBUTTONDOWN     =             0x0201;
		public const int  WM_LBUTTONUP       =             0x0202;
		public const int  WM_RBUTTONDOWN     =             0x0204;
		public const int  WM_LBUTTONDBLCLK   =             0x0203;

		public const int  WM_MOUSELEAVE      =             0x02A3;


		
		public const int WM_PAINT     =                   0x000F;
		public const int WM_ERASEBKGND   =                0x0014;
		
		public const int WM_PRINT         =               0x0317;

		//const int EN_HSCROLL       =   0x0601;
		//const int EN_VSCROLL       =   0x0602;

		public const int WM_HSCROLL       =              0x0114;
		public const int WM_VSCROLL       =              0x0115;


		public const int EM_GETSEL              = 0x00B0;
		public const int EM_LINEINDEX           = 0x00BB;
		public const int EM_LINEFROMCHAR        = 0x00C9;

		public const int EM_POSFROMCHAR         = 0x00D6;



		[DllImport("USER32.DLL", EntryPoint= "PostMessage")]
		public static extern bool PostMessage(IntPtr hwnd, uint msg,
			IntPtr wParam, IntPtr lParam);

		/*
			BOOL PostMessage(          HWND hWnd,
				UINT Msg,
				WPARAM wParam,
				LPARAM lParam
				);
		*/

		// Put this declaration in your class   //IntPtr
		[DllImport("USER32.DLL", EntryPoint= "SendMessage")]
		public static extern int SendMessage(IntPtr hwnd, int msg, IntPtr wParam,
			IntPtr lParam);



		
		[DllImport("USER32.DLL", EntryPoint= "GetCaretBlinkTime")]
		public static extern uint GetCaretBlinkTime();




		const int WM_PRINTCLIENT	= 0x0318;

		const long PRF_CHECKVISIBLE=0x00000001L;
		const long PRF_NONCLIENT	= 0x00000002L;
		const long PRF_CLIENT		= 0x00000004L;
		const long PRF_ERASEBKGND	= 0x00000008L;
		const long PRF_CHILDREN	= 0x00000010L;
		const long PRF_OWNED		= 0x00000020L;

		/*  Will clean this up later doing something like this
		enum  CaptureOptions : long
		{
			PRF_CHECKVISIBLE= 0x00000001L,
			PRF_NONCLIENT	= 0x00000002L,
			PRF_CLIENT		= 0x00000004L,
			PRF_ERASEBKGND	= 0x00000008L,
			PRF_CHILDREN	= 0x00000010L,
			PRF_OWNED		= 0x00000020L
		}
		*/


		public static bool CaptureWindow(System.Windows.Forms.Control control, 
								ref System.Drawing.Bitmap bitmap)
		{
			//This function captures the contents of a window or control

			Graphics g2 = Graphics.FromImage(bitmap);

			//PRF_CHILDREN // PRF_NONCLIENT
			int meint = (int)(PRF_CLIENT | PRF_ERASEBKGND); //| PRF_OWNED ); //  );
			System.IntPtr meptr = new System.IntPtr(meint);

			System.IntPtr hdc = g2.GetHdc();
			win32.SendMessage(control.Handle,win32.WM_PRINT,hdc,meptr);

			g2.ReleaseHdc(hdc);
			g2.Dispose();

			return true;
			
		}



	}
}