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Draw the background of a list
void PtGenListDrawBackground(
PtWidget_t *list,
PtGenListItem_t const *items,
unsigned nitems,
PhRect_t const *where,
int lmarg,
int rmarg,
int tmarg,
int bmarg );
- list
- The widget pointer.
- items
- A pointer to the
PtGenListItem_t
structure for the first item that needs to be redrawn.
- nitems
- The number of items the function should look at.
- where
- A pointer to a PhRect_t structure
(see the Photon Library Reference) that defines the extent of the items.
- lmarg, rmarg, tmarg, bmarg
- These arguments define additional “margins” on the
left, right, top, and bottom — by setting them to a positive
value, you can shorten the selection bar.
This function can be used by a child class of PtGenList
for drawing the background. If the
Pt_GEN_LIST_SHOW_DAMAGED bit is set in
list->gflags, the function draws only the
background for damaged items.
To determine the color it uses to draw the background,
PtGenListDrawBackground() calls the
List Attributes method for the list widget.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PtGenList,
PtGenListItem_t
PhRect_t
in the Photon Library Reference
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