___100分___求助,c# 中如何将网页存为bmp图？？（解决后另开帖再加分）______

Question

我在 http://www.codeproject.com/cs/media/IECapture.asp 看到一个例子
但该例只能在xp下使用，在2000下，其中的printWindow函数就会出错。大家看看有什么办法可以解决这个问题？？
急啊谁能解决的话，我会另开帖加分的，帮帮我吧

Answer 1

模拟printscreen
然后取出剪贴板的数据

Answer 2

class GDI32
{
[DllImport("GDI32.dll")]
public static extern bool BitBlt(int hdcDest,int nXDest,int nYDest,
int nWidth,int nHeight,int hdcSrc,
int nXSrc,int nYSrc,int dwRop);
[DllImport("GDI32.dll")]
public static extern int CreateCompatibleBitmap(int hdc,int nWidth, 
int nHeight);
[DllImport("GDI32.dll")]
public static extern int CreateCompatibleDC(int hdc);
[DllImport("GDI32.dll")]
public static extern bool DeleteDC(int hdc);
[DllImport("GDI32.dll")]
public static extern bool DeleteObject(int hObject);
[DllImport("GDI32.dll")]
public static extern int GetDeviceCaps(int hdc,int nIndex);
[DllImport("GDI32.dll")]
public static extern int SelectObject(int hdc,int hgdiobj);
} class User32
{
[DllImport("User32.dll")]
public static extern int GetDesktopWindow();
[DllImport("User32.dll")]
public static extern int GetWindowDC(int hWnd);
[DllImport("User32.dll")]
public static extern int ReleaseDC(int hWnd,int hDC);
[DllImport("User32.dll")]
public static extern int GetDC(int hwnd);
}
public void CaptureScreen(string fileName, ImageFormat imageFormat)
{
int intHdc = User32.GetDC(0);
int w= Screen.PrimaryScreen.Bounds.Width;
int h= Screen.PrimaryScreen.Bounds.Height;
int hdcSrc = User32.GetWindowDC(User32.GetDesktopWindow()), 
hdcDest = GDI32.CreateCompatibleDC(intHdc),
hBitmap = GDI32.CreateCompatibleBitmap(intHdc,
w,h);
GDI32.SelectObject(hdcDest,hBitmap);
GDI32.BitBlt(hdcDest,0,0,GDI32.GetDeviceCaps(intHdc,8),
GDI32.GetDeviceCaps(intHdc,10),
intHdc,0,0,0x00CC0020);
SaveImageAs(hBitmap,fileName,imageFormat);
Cleanup(hBitmap,intHdc,hdcDest);
}//end CaptureScreen
private void Cleanup(int hBitmap, int hdcSrc, int hdcDest)
{
User32.ReleaseDC(User32.GetDesktopWindow(),hdcSrc);
GDI32.DeleteDC(hdcDest);
GDI32.DeleteObject(hBitmap);
}//end Cleanup    private void SaveImageAs(int hBitmap, string fileName, ImageFormat imageFormat)
{
Bitmap image = 
new Bitmap(Image.FromHbitmap(new IntPtr(hBitmap)),
Image.FromHbitmap(new IntPtr(hBitmap)).Width,
Image.FromHbitmap(new IntPtr(hBitmap)).Height);
image.Save(fileName,imageFormat);
}//end SaveImageAs