using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form {
const int SRCCOPY = 0xcc0020;
[System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
private static extern int BitBlt(
IntPtr hdcDest, // handle to destination DC (device context)
int nXDest, // x-coord of destination upper-left corner
int nYDest, // y-coord of destination upper-left corner
int nWidth, // width of destination rectangle
int nHeight, // height of destination rectangle
IntPtr hdcSrc, // handle to source DC
int nXSrc, // x-coordinate of source upper-left corner
int nYSrc, // y-coordinate of source upper-left corner
System.Int32 dwRop // raster operation code
);
public Form1() {
InitializeComponent();
}
private void Form1_Paint(object sender, PaintEventArgs e) {
Graphics g = e.Graphics;
g.FillRectangle(Brushes.White, ClientRectangle);
g.DrawRectangle(Pens.Black, 10, 10, 40, 40);
IntPtr dc = g.GetHdc();
BitBlt(dc, 70, 0, 60, 60, dc, 0, 0, SRCCOPY);
g.ReleaseHdc(dc);
}
private void InitializeComponent() {
this.SuspendLayout();
this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(292, 268);
this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}