Zoom Slider widget

This widget adds zoom action control to a Px page video camera interface. It looks similar to a typical scroll bar and is designed to fit along one of the four bounding edges of a Live Video Player widget.

Figure 4. Zoom Slider widget in the palette

To add it to a Px page, drag it directly from the videoDriver palette onto the Px page. After placing it on the Px page, drag the widget boundaries to adjust the size, position, and orientation.

Figure 5. Zoom Slider control examples

To invoke the zoom action, click on the zoom icon that is located in the center of the zoom bar. Depending on how you orient the widget on the Px page, the zoom slider acts as follows:

Vertical orientation: when the Zoom Slider widget is oriented vertically, drag the zoom icon up to zoom-in and down to zoom-out.
Horizontal orientation: when the Zoom Slider widget is oriented horizontally, drag the zoom icon right to zoom-in and left to zoom-out.

How far up or down you move the icon controls the zoom speed. The color indicates changes in the zoom bar.

NOTE: Camera controls do not operate unless they are Enabled. Each of these controls must be enabled by selecting the option box for each control under the PTZ Support property on the camera Property Sheet. The default setting for these controls is Disabled (or, not selected).