【求助】怎么把一个FORM里面的内容，都保存到一个BMP图片文件中去？

[renchao]

请问：
怎么把一个FORM里面的内容，都保存到一个BMP图片文件中去？
谢谢！

[s5689412]

参考这里：
http://s5689412.cnblogs.com/archive/2005/10/26/262258.html

[悄悄的回来了]

呵呵!好东西!谢谢了!

[zlc_168]

IntPtr dc = GetDC(IntPtr.Zero);
Graphics dcG = Graphics.FromHwnd(IntPtr.Zero);
Bitmap bmp = new Bitmap(Width,Height,dcG);
Graphics bmpG = Graphics.FromImage(bmp);
IntPtr hdcDest = bmpG.GetHdc();
BitBlt(hdcDest,0,0,bmp.Width,bmp.Height,dc,Left,Top,0x00CC0020);
bmpG.ReleaseHdc(hdcDest);
bmpG.Dispose();
bmp.Save(@"c:\zlc.bmp",System.Drawing.Imaging.ImageFormat.Bmp);
bmp.Dispose();
dcG.Dispose();
ReleaseDC(IntPtr.Zero,dc);

[zlc_168]

api声明
[DllImport("user32.dll", CharSet=CharSet.Auto)]
static public extern IntPtr GetDC(IntPtr hWnd);

[DllImport("user32.dll", CharSet=CharSet.Auto)]
static public extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);

[DllImport("gdi32.dll", CharSet=CharSet.Auto)]
static public extern bool BitBlt(IntPtr hdcDest, // handle to destination device context
int nXDest, // x-coordinate of destination rectangle's upper-left corner
int nYDest, // y-coordinate of destination rectangle's upper-left corner
int nWidth, // width of destination rectangle
int nHeight, // height of destination rectangle
IntPtr hdcSrc, // handle to source device context
int nXSrc, // x-coordinate of source rectangle's upper-left corner
int nYSrc, // y-coordinate of source rectangle's upper-left corner
uint dwRop); // raster operation code );