CODEWITHSUNDEEP
c++windowsgdiresource-leak
Radim Cernej
Radim Cernej

Reputation: 794

Can one cause problems by prematurely releasing a Windows GDI object?

Can one cause problems by prematurely releasing a Windows GDI object? With memory one can prematurely delete/free a buffer and cause very serious problems indeed. How about GDI? Can one cause a crash or UI painting issues by prematurely releasing a GDI object?

Upvotes: 0

Views: 103

Answers (1)

Vlad Feinstein
Vlad Feinstein

Reputation: 11311

You can't delete a GDI object that is currently selected into any device context (DC): https://learn.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-deleteobject

After you delete an object, its handle is invalid, so you can't select it into DC.

What other scenario do you have in mind?

Upvotes: 1

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