INFO: Blitting Between DCs for Different Devices Is Unsupported

SUMMARY

Using a device-dependent blitting operation, such as BitBlt() or StretchBlt(), to transfer data from a DC supported by one device to a DC supported by another device is not supported. While blitting between different devices might work with some driver pairs, you cannot rely on it to work between all driver pairs, so you should avoid it. The most common problem scenario occurs when the code for displaying a memory bitmap uses StretchBlt() to display the image to a printer DC.

To avoid this problem, convert the memory bitmap from its device-dependent form into a device-independent form by using the function GetDIBits(). You can display The device-independent image to the second device by using either SetDIBits() or StretchDIBits().