NAME
d_slider_proc - Dialog procedure implementing a slider control object.
Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int d_slider_proc(int msg, DIALOG *d, int c);
DESCRIPTION
A slider control object. This object holds a value in d2, in the range
from 0 to d1. It will display as a vertical slider if h is greater than
or equal to w, otherwise it will display as a horizontal slider. The dp
field can contain an optional bitmap to use for the slider handle, and
dp2 can contain an optional callback function, which is called each
time d2 changes. The callback function should have the following
prototype:
int function(void *dp3, int d2);
The d_slider_proc object will return the value of the callback
function.
SEE ALSO
exgui(3alleg), exrgbhsv(3alleg)