Class CropSelectionToolExample
    ''' <summary>
    ''' Programmatically crops an image in image viewer.
    ''' </summary>
    ''' <param name="viewer">Image viewer.</param>
    Public Sub ProgrammaticallyCropImageInViewer(viewer As Vintasoft.Imaging.UI.ImageViewer)
        ' create an instance of CropSelectionTool class
        Dim cropSelectionTool As New Vintasoft.Imaging.UI.VisualTools.CropSelectionTool()

        ' set the tool as the current tool of the ImageViewer
        viewer.VisualTool = cropSelectionTool

        ' set the region of interest on image
        cropSelectionTool.Rectangle = New System.Drawing.Rectangle(50, 50, 250, 150)
        ' crop an image
        cropSelectionTool.Crop()
    End Sub
End Class

class CropSelectionToolExample
{
    /// <summary>
    /// Programmatically crops an image in image viewer.
    /// </summary>
    /// <param name="viewer">Image viewer.</param>
    public void ProgrammaticallyCropImageInViewer(Vintasoft.Imaging.UI.ImageViewer viewer)
    {
        // create an instance of CropSelectionTool class
        Vintasoft.Imaging.UI.VisualTools.CropSelectionTool cropSelectionTool = 
            new Vintasoft.Imaging.UI.VisualTools.CropSelectionTool();

        // set the tool as the current tool of the ImageViewer
        viewer.VisualTool = cropSelectionTool;
        
        // set the region of interest on image
        cropSelectionTool.Rectangle = new System.Drawing.Rectangle(50, 50, 250, 150);
        // crop an image
        cropSelectionTool.Crop();
    }
}