win32api.cs

苏金明编写的《用VB.NET和VC#.NET开发交互式CAD系统》一书的源代码

using System;
using System.Drawing;
using System.Runtime.InteropServices;

namespace VCSharp
{
	/// <summary>
	/// Win32API 的摘要说明。
	/// </summary>
	public class Win32API
	{
		public Win32API()
		{
			//
			// TODO: 在此处添加构造函数逻辑
			//
		}

		[StructLayout(LayoutKind.Sequential)] public struct LPPOINT
		{
	        long x;
			long y; 
		}

		[DllImportAttribute("gdi32.dll")]
		public static extern bool SetROP2(IntPtr hdc, int nDrawMode);

		[DllImport("gdi32.dll")]
		public static extern bool GetROP2(IntPtr hdc);

		[DllImport("gdi32.dll")] 
		public static extern long CreatePen(int nPenStyle, 
		    int nWidth,int crColor);

		[DllImport("gdi32.dll")] 
		public static extern long CreateSolidBrush(int crColor);

		[DllImport("gdi32.dll")] 
		public static extern long GetStockObject(int nIndex);

		[DllImport("gdi32.dll")] 
		public static extern long SelectObject(IntPtr hdc, 
		      long hObject);

		[DllImport("gdi32.dll")] 
		public static extern long DeleteObject(long hObject);

		[DllImport("gdi32.dll")] 
		public static extern bool MoveToEx(IntPtr hdc,  
	         int x,int y,LPPOINT lpPoint);

		[DllImport("gdi32.dll")] 
		public static extern bool LineTo (IntPtr hdc,
	          int x,int y );

		[DllImport("gdi32.dll")]
		public static extern bool Rectangle(IntPtr hdc,
			 int X1, int Y1,int X2,int Y2);

		[DllImport("gdi32.dll")] 
		public static extern bool Ellipse(IntPtr hdc, int X1,
			int Y1, int X2,int Y2);

	    [DllImport("gdi32.dll")] 
		public static extern bool Arc 
	         (IntPtr hdc,int X1,int Y1, 
	         int X2,int Y2,int X3, 
	         int Y3,int X4,int Y4);

	}
}