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Fix potential exception that I was ignoring.

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This can happen, so we should handle it
This commit is contained in:
Paul Kratt 2014-02-21 21:36:22 -06:00
parent 794d45fdeb
commit ba0180ed77
1 changed files with 7 additions and 4 deletions
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11
Source/GLControl/CarbonGLControl.cs
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@ -54,10 +54,13 @@ namespace OpenTK
}
private int GetYOffset(){
System.Drawing.Point offset = control.PointToScreen(control.Location);
System.Drawing.Point windowOffset = control.TopLevelControl.PointToScreen(System.Drawing.Point.Empty);
int relativeY = offset.Y-windowOffset.Y; //control.TopLevelControl.Location.Y is not the same as windowOffset.Y for some reason.
return control.TopLevelControl.ClientSize.Height - control.Bottom - relativeY;
if (control.TopLevelControl != null) {
System.Drawing.Point offset = control.PointToScreen (control.Location);
System.Drawing.Point windowOffset = control.TopLevelControl.PointToScreen (System.Drawing.Point.Empty);
int relativeY = offset.Y - windowOffset.Y; //control.TopLevelControl.Location.Y is not the same as windowOffset.Y for some reason.
return control.TopLevelControl.ClientSize.Height - control.Bottom - relativeY;
}
return control.Location.Y;
}
#region IGLControl Members