who can tell me how to save the DC...

[Grrrr]

i mean that i draw something on a DC(CDC). then i need to save this to a .bmp file. that is to say, how to find the BITMAPINFO structure?

[KarstenK]

You must compute the bitmapinfo structure in your program. This is a "To Do". Read the MSDN and don´t ferget the 'DWORD' Alignment!!! Try this @ home. (B&B)

[Grrrr]

Thanks. Can you tell me where I can find the details about this in MSDN? And how can i compute the bitmapinfo structure about a DC? Best Regards...

[KarstenK]

If you use the visual studio press F1 else try the online docs from MSFT. If you 'maybe' find the bitmapinfo you will read that this info contain the measures about the bitmap. A nice function is also "GetDIBits". Try this @ home. (B&B)

[Grrrr]

ok.Thanks. I have download a program coding with VC++6.0, It use GetDibits() function as you say. http://www.codeguru.com/bitmap/window\_to\_file.shtml Now,i will study these documents and functions at first... thanks you very much..