Crash in CXTPTaskPanelPaintManager::DrawGroupClien

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   I have a case in which I am crashing in CXTPTaskPanelPaintManager::DrawGroupClient because in the line

    int nAlpha = pGroup->IsExpanding() ? (255 * rc.Height()) / pGroup->GetExpandedClientHeight() : 255;

pGroup->GetExpandedClientHeight() is returning 0, resulting in (surprise) a divide by zero.  I installed a little defensive programming in this function to prevent the crash.  It may be that I don't have something set up correctly, but a bit more checking in the DrawGroupClient code doesn't seem unreasonable to me.

I am running 10.4 and see that the source hasn't changed (in this function, anyway) in 11.1.  Has this been fixed in 11.2?

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mrmathis Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 17 May 2007 Location: United States Status: Offline Points: 105	Post Options Post Reply Quote mrmathis Report Post Thanks(0) Quote Reply Topic: Crash in CXTPTaskPanelPaintManager::DrawGroupClien Posted: 12 September 2007 at 7:25pm
	I have a case in which I am crashing in CXTPTaskPanelPaintManager::DrawGroupClient because in the line int nAlpha = pGroup->IsExpanding() ? (255 * rc.Height()) / pGroup->GetExpandedClientHeight() : 255; pGroup->GetExpandedClientHeight() is returning 0, resulting in (surprise) a divide by zero. I installed a little defensive programming in this function to prevent the crash. It may be that I don't have something set up correctly, but a bit more checking in the DrawGroupClient code doesn't seem unreasonable to me. I am running 10.4 and see that the source hasn't changed (in this function, anyway) in 11.1. Has this been fixed in 11.2?
	--Mike

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 13 September 2007 at 3:53am
	Thanks, yes it was fixed for 11.2 version. Please replace to int nAlpha = pGroup->IsExpanding() ? (255 * rc.Height()) / max(1, pGroup->GetExpandedClientHeight()) : 255;
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS