Zoom Factor Property
Short Name: ZoomFactor
Installed With: Base Package
Class: Picture Properties
Factor by which to scale the image in a picture control or indicator.
For example, to decrease the size of the image to 50% of its original size, wire a value of 0.5 to this property. To increase the size of the image to 200% of its original size, wire a value of 2 to this property.
The value you wire to this property must be greater than or equal to 0.
If you change the zoom factor and LabVIEW draws part of the image outside the draw area of the picture control or indicator, you can use the Horizontal Scrollbar Visible and Vertical Scrollbar Visible properties to display scroll bars for the picture control or indicator.
Remarks
The following table lists the characteristics of this property.
| Available in Run-Time Engine and Real-Time Operating System | Yes |
| Permissions | Read/Write |
| Settable when the VI is running | Yes |
| Loads the front panel into memory | No |
| Need to authenticate before use | No |
| Loads the block diagram into memory | No |
| Remote access disallowed | No |
| Must wait until user interface is idle | No |
| Available with control VIs | No |
| Available with global VIs | No |
| Available with strict type definitions | No |
| Available with polymorphic VIs | No |
Example
Refer to the Picture Control - Zoom Attribute VI in the labview\examples\picture\pictctl.llb for an example of using the Zoom Factor property.
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