TouchToolKit for WinForms
Key Features
System Requirements
Key Components
QuickStart
Zooming Component
Zoom Command Provider
Zoom Panel
Application Zoom Component
Touch Event Provider
Magnify Component
MultiScaleImage Control
Zoom Policies

C1Zoom Mouse Wheel

You can zoom the Form by Ctrl + Mouse Wheel scroll when the active control does not handle the MouseWheel message. To enable this behavior, use the following code:

C1Zoom1.AllowMouseWheelZoom = True

c1Zoom1.AllowMouseWheelZoom = true;

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Note:

If you set the C1Zoom.AllowPinchZoom property to False, the Form still can zoom, because the Ctrl + MouseWheel message is valid if C1Zoom.AllowMouseWheelZoom = True.

If you add a C1ZoomPanel to the Form. Make sure the focus is in the C1ZoomPanel control. Pinch outside the C1ZoomPanel, the C1ZoomPanel will zoom if the C1ZoomPanel.AllowMouseWheelZoom = True.