version 2003
PA_BeforeSelection (tableNum) char
Parameter | Type | Description | |
tableNum | short | Table number | |
Function result | char | 1 if Before Selection is reached, else 0 |
Description
The command PA_BeforeSelection returns 1 if the current record pointer is positioned before the first record of the selection for the Table number tableNum. Otherwise, it returns 0.
PA_BeforeSelection also returns 1 if the selection is empty.
A 4D plug-in would typically call PA_BeforeSelection to detect whether the record pointer had moved to a point before the first record of a selection following a call to PA_PreviousRecord.
WARNING
This routine does not use virtual structure
Example
See PA_PreviousRecord for an example of use.
See Also
PA_EndSelection, PA_PreviousRecord.
Error Handling
Use PA_GetLastError to see if an error occurred (invalid table number)
Current Selections and Records
No change. If PA_BeforeSelection returns 1, there is no current record.