CView Flickers

[djawn]

I am trying to figure out why one of my SDI splitter view is flickering. I have a view that uses StretchDIBBits to display a series of BMPs in a view, and this seems to cause the flicker in another splitter form view. Can anyone tell me why? Nothing else flickers except the view with the MFC control in it.

[Wade]

Are you doing an UpdateWindow() or Invalidate()at all in the view that is flickering?

Wade

[djawn]

No, but I do call UpdateAllViews() from the Document class. However, I didn't override OnUpdate(), or Invalidate(), it is just a blank dialog/form view.

[Wade]

Ok that leads me to my next question. Did you override OnSyncToDoc() and add the view to the doc? I'm just thinking that if you did, in other words, if the doc is trying to update that view and you don't handle OnUpdate, I wonder if the default behavior is to just Invalidate. It might be worth a try, add in an OnUpdate handler and just break on that particular hint and see if that fixes it. Other than that, I have no idea what might be causing the flicker.

Good luck, and please let me know if you find the answer just in case I ever run into that problem.

Wade

[djawn]

Genius!

[djawn]

All I did was add OnUpdate() virtual override.

[Wade]

Excellent, I'm glad that worked for you.

Happy coding,

Wade