DtvLong dal_but_set_men (idb, pos, men)

Sets a menu to follow the button passed.

Input Parameter Significance
DtvLong idb Button area ID
DtvLong pos (Logical) Position of button in button area
DtvLong men Menu ID

Output Parameter Significance
none -

Return Code Significance
0 OK
1 Invalid row
-1 Null ID

The function automatically invoke any set Button listener function.