public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Image pic = new Bitmap(this.Width, this.Height);
Graphics graphic = Graphics.FromImage(pic);
graphic.CopyFromScreen(new Point(this.Location.X, this.Location.Y), new Point(0, 0), new Size(this.Width, this.Height));
pic.Save(@”d:/test.jpeg”, ImageFormat.Jpeg);
graphic.Dispose();
}
[System.Runtime.InteropServices.DllImportAttribute(“gdi32.dll”)]
private static extern bool BitBlt(
IntPtr hdcDest, //方针设备的句柄
int nXDest, // 方针东西的左上角的X坐标
int nYDest, // 方针东西的左上角的X坐标
int nWidth, // 方针东西的矩形的宽度
int nHeight, // 方针东西的矩形的长度
IntPtr hdcSrc, // 源设备的句柄
int nXSrc, // 源东西的左上角的X坐标
int nYSrc, // 源东西的左上角的X坐标
System.Int32 dwRop // 光栅的操纵值
);
[System.Runtime.InteropServices.DllImportAttribute(“gdi32.dll”)]
private static extern IntPtr CreateDC(
string lpszDriver, // 驱动名称
string lpszDevice, // 设备名称
string lpszOutput, // 无用，，可以设定位”NULL”
IntPtr lpInitData // 任意的打印机数据
);
private void Form1_SizeChanged(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{
this.Hide();
IntPtr dc1 = CreateDC(“DISPLAY”, null,
null, (IntPtr)null);
//创建显示器的DC
Graphics g1 = Graphics.FromHdc(dc1);
//由一个指定设备的句柄创建一个新的Graphics东西
Bitmap MyImage =
new Bitmap(Screen.PrimaryScreen.Bounds.Width,
Screen.PrimaryScreen.Bounds.Height, g1);
//按照屏幕巨细创建一个与之不异巨细的Bitmap东西
Graphics g2 = Graphics.FromImage(MyImage);
//获得屏幕的句柄
IntPtr dc3 = g1.GetHdc();
//获得位图的句柄
IntPtr dc2 = g2.GetHdc();
//把当前屏幕捕获到位图东西中
BitBlt(dc2, 0, 0, Screen.PrimaryScreen.Bounds.Width,
Screen.PrimaryScreen.Bounds.Height,
dc3, 0, 0, 13369376);
//把当前屏幕拷贝到位图中
g1.ReleaseHdc(dc3);
//释放屏幕句柄
g2.ReleaseHdc(dc2);
//释放位图句柄
Bitmap img = new Bitmap(MyImage, 800, 600);
//缩放图片到800*600
img.Save(“d:\\MyJpeg.jpg”, ImageFormat.Jpeg);
MessageBox.Show(“已经把当前屏幕生存到” +
“C:\\MyJpeg.jpg文件中！”);
this.Show();
}