PA_VirtualStructureDefined

version 2003

PA_VirtualStructureDefined char

Parameter	Type		Description
This command does not require any parameters
Function result	char		1 if virtual sructure is defined, else 0

The command PA_VirtualStructureDefined returns 1 if the virtual structure is defined in 4th Dimension, otherwise it returns 0.

By default, real structure is used, and you can tell 4D to switch between virtual and real structure by calling PA_UseVirtualStructure and PA_UseRealStructure.

Note that PA_VirtualStructureDefined returns 1 if 4D itself knows about virtual structure, it does not depend of the last call to PA_UseVirtualStructure and PA_UseRealStructure.

Once you know if the virtual structure mode is defined, you can call routines that return information about the true/virtual tables and fields number, such as PA_GetTrueTableNumber, PA_GetVirtualTableNumber.

The virtual structure is used when the 4D commands SET TABLE TITLES and SET FIELD TITLES are called.

See PA_UseVirtualStructure for an example of use.

PA_GetTrueFieldNumber, PA_GetTrueTableNumber, PA_GetVirtualFieldNumber, PA_GetVirtualTableNumber.

PA_GetLastError always returns eER_NoErr