platforminvokegdi32.cs

一个非常完整的网络会议系统

using System;
using System.Runtime.InteropServices;
namespace SampleGrabberNET
{
	/// <summary>
	/// This class shall keep the GDI32 APIs being used in our program.
	/// </summary>
	public class PlatformInvokeGDI32
	{

		#region Class Variables
		public  const int SRCCOPY = 13369376;
		#endregion

		#region Class Functions
		[DllImport("gdi32.dll",EntryPoint="DeleteDC")]
		public static extern IntPtr DeleteDC(IntPtr hDc);

		[DllImport("gdi32.dll",EntryPoint="DeleteObject")]
		public static extern IntPtr DeleteObject(IntPtr hDc);

		[DllImport("gdi32.dll",EntryPoint="BitBlt")]
		public static extern bool BitBlt(IntPtr hdcDest,int xDest,int yDest,int wDest,int hDest,IntPtr hdcSource,int xSrc,int ySrc,int RasterOp);

		[DllImport ("gdi32.dll",EntryPoint="CreateCompatibleBitmap")]
		public static extern IntPtr CreateCompatibleBitmap(IntPtr hdc,	int nWidth, int nHeight);

		[DllImport ("gdi32.dll",EntryPoint="CreateCompatibleDC")]
		public static extern IntPtr CreateCompatibleDC(IntPtr hdc);

		[DllImport ("gdi32.dll",EntryPoint="SelectObject")]
		public static extern IntPtr SelectObject(IntPtr hdc,IntPtr bmp);
		#endregion
	
		#region Public Constructor
		public PlatformInvokeGDI32()
		{
			// 
			// TODO: Add constructor logic here
			//
		}
		#endregion
	
	}
}