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GetRange crash |
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yangyanhui 
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Joined: 20 August 2020 Status: Offline Points: 131 |
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 Topic: GetRange crashPosted: 08 December 2020 at 12:55am |
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CXTPChartContent* pContent = GetContent(); CXTPChartSeriesCollection* pCollection = pContent->GetSeries(); CXTPChartDiagram2D* pDiagram = DYNAMIC_DOWNCAST(CXTPChartDiagram2D, pCollection->GetAt(0)->GetDiagram()); double internalValueX = ((CXTPChartDiagram2DAxisView*)pDiagram->GetAxisX()->GetAxisView())->PointToValue(pt.x); I use these code in mousemove event. It crashes after I move my mouse several times. What may cause it? thanks
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yangyanhui
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Posted: 08 December 2020 at 9:48pm |
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I can confirm that the coordinate is in the area of the chartctrl. PointToValue crashes.
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yangyanhui
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Posted: 08 December 2020 at 11:36pm |
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when I move slowly.It works well,when I move the mouse fast,it will crash which is very strange
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yangyanhui
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Posted: 09 December 2020 at 3:03am |
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I add sleep(50) after PointToValue. It works but there is a track shows where the mouse moved as it is not validated in time.
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yangyanhui
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Posted: 17 December 2020 at 2:02am |
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I find the reason. It is because I execute pDiagram->GetAxisX()->GetRange()->GetViewMaxValue(); when I move the mouse. I now need to disable onmousemove when I zoom the range because I need to exeute PointToValue in mousemove event.How can i realize it,mutex does not work
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