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d_list_proc(3) Allegro manual d_list_proc(3) NAME d_list_proc - Dialog procedure implementing a list box object. Allegro game programming library. SYNOPSIS #include <allegro.h> int d_list_proc(int msg, DIALOG *d, int c); DESCRIPTION A list box object. This will allow the user to scroll through a list of items and to select one by clicking or with the arrow keys. If the D_EXIT flag is set, double clicking on a list item will close the dialog. The in- dex of the selected item is held in the d1 field, and d2 is used to store how far it has scrolled through the list. The dp field points to a function which will be called to obtain information about the contents of the list. This should follow the form: char *foobar(int index, int *list_size); If index is zero or positive, the function should return a pointer to the string which is to be displayed at position index in the list. If index is negative, it should return NULL and list_size should be set to the number of items in the list. To create a multiple selection listbox, set the dp2 field to an array of byte flags indicating the selection state of each list item (non-zero for selected entries). This table must be at least as big as the number of ob- jects in the list! SEE ALSO exgui(3) Allegro version 4.4.3 d_list_proc(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO
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