Sharing HDC between different processes

Posted by Heinrich Ulbricht on Stack Overflow See other posts from Stack Overflow or by Heinrich Ulbricht
Published on 2010-03-23T11:37:04Z Indexed on 2010/03/23 18:53 UTC
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Windows

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winapi

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hdc

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ipc

Hi,

I am writing some kind of IPC functionality and need to pass certain resources from one process to another. This works well for Pipe handles etc. which can be duplicated via DuplicateHandle. Now I need to pass a HDC from one process to the other. Is this even possible? If yes: how?

Sub-Question: I am assuming passing window handles (HWND) from one process to the other is safe. Is this assumption correct?

Thanks for your help!

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