BitBlt returns an error if the source and destination device contexts represent different devices. To transfer data between device contexts for different devices, convert the memory bitmap to a DIB by calling GetDIBits. To display the DIB to the second device, call SetDIBits or StretchDIBits.

/// If the lpvBits parameter is NULL and GetDIBits successfully fills the <see cref="BITMAPINFO"/> structure, the return value is nonzero.

[DllImport("gdi32.dll", EntryPoint = "GetDIBits")]

static extern int GetDIBits([In] IntPtr hdc, [In] IntPtr hbmp, uint uStartScan, uint cScanLines, [Out] byte[] lpvBits, ref BITMAPINFO lpbi, DIB_Color_Mode uUsage);