DtvLong dal_but_set_par (idb, pos, par)

Fills the button buffer of the button area with the userexit parameter of the button at the specified position.

Input Parameters Significance
DtvLong idb button area Id
DtvLong pos (logical) position of the button
char *par userexit parameter

Output Parameters Significance
-

Return Code Significance
0 all ok
1 wrong (logical) position
-1 zero pointer

The function automatically invoke any set Button listener function.