Image Viewer CP ActiveX Control x64 ReferenceMethods AutoZoom Image Viewer CP ActiveX Control AutoZoom Auto zoom the image when called DrawSelectionRect. Public Function AutoZoom() No Parameter No Return Value Example Visual Basic SyntaxImageViewer1.FileName="c:\test1.jpg"ImageViewer1.MouseTrackMode=1ImageViewer1.DrawSelectionRect 0, 0, 100,100ImageViewer1.AutoZoom