The HitTest Method is available in LEADTOOLS Document and Medical Imaging toolkits.
- testPoint
- The AnnPoint structure that contains the point to test.
- buffer
- Value that represents the size of the test point. This value makes the test point a square with an edge lenght of "buffer" * 2. This square is used to hit test.
Syntax
| Visual Basic (Declaration) | |
|---|---|
Overrides Public Function HitTest( _ ByVal testPoint As AnnPoint, _ ByVal buffer As Integer _ ) As Object | |
| Visual Basic (Usage) |  Copy Code |
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Dim instance As AnnGroupObject Dim testPoint As AnnPoint Dim buffer As Integer Dim value As Object value = instance.HitTest(testPoint, buffer) | |
Parameters
- testPoint
- The AnnPoint structure that contains the point to test.
- buffer
- Value that represents the size of the test point. This value makes the test point a square with an edge lenght of "buffer" * 2. This square is used to hit test.
Return Value
The AnnObject.DefaultHitTestValue if any annotation object within the group satisfies the hit test; or null (Nothing in Visual Basic) if the test point does not hit an annotation object in this AnnGroupObject object.Remarks
The AnnGroupObject will perform hit-testing on all the objects in the group. If any annotation object within the group satisfies the hit test, the return value will be AnnObject.DefaultHitTestValue. To find the object inside the group that satisfies the hit-test, enumerate all of the objects in the group and call AnnObject.HitTest manually. For more information, refer to AnnObject.HitTest.
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7