CODEWITHSUNDEEP
c++copybitmapgdi
user37875
user37875

Reputation: 14194

copy hdc contents to bitmap

How could you copy the contents of an HDC to a bitmap?

Upvotes: 4

Views: 10743

Answers (2)

Rob
Rob

Reputation: 78628

Off the top of my head I think you need to:

  • Create a new DC compatible with the source DC. Call this the memory DC.
  • Create a new bitmap of the correct size.
  • Select the bitmap into the memory DC.
  • BitBlt the source DC into the memory DC.
  • The bitmap should now contain a copy of the source DC.

I'm at home so can't give you any code, so I hope this is enough to get you started. There is a good GDI section on Code Project.

http://www.codeproject.com/KB/graphics/

Upvotes: 7

Andrew Rollings
Andrew Rollings

Reputation: 14551

There is a good piece of sample code here that does just that (amongst other things).

I've used a similar technique before (many moons ago), but do not have the code to hand.

Upvotes: 3

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