The HitTestZone Method is available as an add-on to the LEADTOOLS Document and Medical Imaging toolkits.
- point
- The test point in logical coordinates.
Syntax
| Visual Basic (Declaration) | |
|---|---|
Function HitTestZone( _ ByVal point As LogicalPoint _ ) As Integer | |
| Visual Basic (Usage) |  Copy Code |
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Dim instance As IOcrPage Dim point As LogicalPoint Dim value As Integer value = instance.HitTestZone(point) | |
| C# | |
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int HitTestZone( LogicalPoint point ) | |
| C++/CLI | |
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int HitTestZone( LogicalPoint point ) | |
Parameters
- point
- The test point in logical coordinates.
Return Value
The zero-based index of the zone under point, if no zone is under the test point, this method will return -1.Example
Remarks
You can use this method to check whether a zone (either added manually or automatically) is under a given test point. For example, if you have a Windows Forms based application with the current IOcrPage in a Leadtools.WinForms.RasterImageViewer control. You might want to draw the zones on the surface of the viewer. For this, you can use the GetZoneBoundsInPixels methods. If you want to allow the user to click with the mouse on the viewer to select and de-select zones, you can use HitTestZone.
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7