DtvLong dal_mas_set_xbm_mas (idm, xbm)

Sets a userexit at the pre_mask-trigger of the mask passed.

Input Parameters Significance
DtvLong idm mask Id
char *xbm pre_mask-userexit

Output Parameters Significance
no -

Return Code Significance
0 no error
1 zero pointer
2 function name not in userexit list

The pre_mask-userexit is called before the mask is output on the screen.

Any required application parameters must be passed together with the name of the userexit in *xbm. In order to delete an userexit already set, you must pass an empty string.

The function automatically invoke any set mask listener function.