Operating systems, development tools, and professional services
for connected embedded systems
for connected embedded systems
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PtWidgetActiveSurface()
Get a widget's currently active control surface
Synopsis:
unsigned char PtWidgetActiveSurface( PtWidget_t *widget );
Library:
ph
Description:
This macro retrieves the provided widget's currently "active" surface. The active surface is the last surface that consumed an event of type Ph_EV_BUT_PRESS.
Returns:
The ID of the currently active control surface, or 0 if there isn't one.
Classification:
Photon
| Safety: | |
|---|---|
| Interrupt handler | No |
| Signal handler | No |
| Thread | No |
See also:
PtFindSurface(), PtFindSurfaceByAction()
Control Surfaces chapter of the Photon Programmer's Guide
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