Return Code	Significance
0	no error
1	error at Pre_Query trigger
100	no further data exist - or - mask without record scan

Can be called as On_Select userexit in the widget menu or as On_Event userexit in widget state or in query mode of the mask edit state.

It is a prerequisite for the record scan that a database sort criterion has been set. If no database sorting has been set, the function outputs the message "database cursor closed, cannot be reloaded" and returns the return code 100.