This version of this document is no longer maintained.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

PtFindNextWidgetData()

Find the next appropriate data block

Synopsis:

void * PtFindNextWidgetData( 
           PtWidget_t *widget, 
           PtDataHdr_t *data_node, 
           PtWidgetClassRef_t *type, 
           long subtype, 
           PtDataHdr_t **_node )

Arguments:

widget

A pointer to the widget whose data you want to search.

data_node

A pointer to the data block from which to start the search. If data_node is NULL, the function searches for the first instance of data that matches the type and subtype provided.

type

The type of data to seek. If type is NULL, any type matches.

subtype

The subtype of data to seek. If subtype is -1, any subtype matches.

_node

If you provide a non-NULL pointer for this argument, it's set to point to the widget data_node that contained the returned data, so you can continue the search from that node.

Description:

This function (starting from data_node) finds the next widget data block that matches the type and subtype provided.

Returns:

A void pointer to the widget data, or NULL if it wasn't found.

Classification:

Photon

See also:

PtAddWidgetData(), PtFindWidgetData(), PtRemoveWidgetData()