IPB_Session interface:
IsGlobalVarNull method
Description
Returns true if the global variable contains
a null value; otherwise it returns false.
Syntax
IsGlobalVarNull( pbfield fid)
Argument
|
Description
|
|---|
fid
|
The field ID of the global variable
|
Return Values
pbboolean.
Examples
These statements test whether the field identified
by fid is a global variable array:
fid = session -> GetGlobalVarID("arr_gvar");
if (session -> IsGlobalVarArray(fid))
{
arr_val=session -> GetArrayGlobalVar(fid, isNull);
...
See Also