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Find the next appropriate data block
void * PtFindNextWidgetData(
PtWidget_t *widget,
PtDataHdr_t *data_node,
PtWidgetClassRef_t *type,
long subtype,
PtDataHdr_t **_node )
- 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.
This function (starting from data_node) finds the next
widget data block
that matches the type and subtype provided.
A void pointer to the widget data, or NULL if it wasn't found.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PtAddWidgetData(),
PtFindWidgetData(),
PtRemoveWidgetData()
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