Caution: This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

PtContainerHold()

Prevent repairs to a container widget and its children

Synopsis:

int PtContainerHold( PtWidget_t *container_widget );

Library:

ph

Description:

This function increments the flux count for the given container, to prevent repairs to the specified container and to all its children. You can still modify the widgets, but the damage to them isn't recorded.

You typically use this function when you're about to make a lot of changes to the container and its children, and you don't want to update the display until you're done. When you want the container to be repaired, call PtContainerRelease().

Returns:

The container widget's current flux count, or -1 if an error occurred.

Examples:

See PtClearWidget().

Classification:

Photon

Safety:
Interrupt handler No
Signal handler No
Thread No

See also:

PtContainerRelease(), PtFlush(), PtIsFluxing()

Delaying and forcing updates to the display in the Working with Code chapter of the Photon Programmer's Guide