public static extern int StretchDIBits(IntPtr hdc, int x, int y, int dx, int dy, int SrcX, int SrcY,
int wSrcWidth, int wSrcHeight, IntPtr lpBits, ref BITMAPINFO lpBitsInfo,
int wUsage, int dwRop);
public static extern int SetDIBitsToDevice(IntPtr hdc, int x, int y, int dx, int dy, int SrcX, int SrcY,
int Scan, int NumScans, IntPtr Bits, BITMAPINFO BitsInfo, int wUsage);
public static extern int CreateDIBSection(IntPtr hdc, ref BITMAPINFO pBitmapInfo, int un, ref IntPtr lplpVoid,
IntPtr handle, int dw);
public static extern int SetDIBits(IntPtr hdc, IntPtr hBitmap, int nStartScan, int nNumScans, IntPtr lpBits,
ref BITMAPINFO lpBI, int wUsage);
public static extern int CreateDIBitmap(IntPtr hdc, ref BITMAPINFOHEADER lpInfoHeader, int dwUsage,
IntPtr lpInitBits, ref BITMAPINFO lpInitInfo, int wUsage);