This function retrieves the value of a variable. A new SbData object is created and the pointer to it is returned in pVariable. This memory space is automatically reclaimed when the program object is destroyed or the function DestroySbData can be called.
int scriba_GetVariable(pSbProgram pProgram,
long lSerial,
pSbData *pVariable
){
The argument lSerial should be the serial number of the global variable
as returned by @xref{scriba_LookupVariableByName()}.
The funtion returns SCRIBA_ERROR_SUCCESS on success,
SCRIBA_ERROR_MEMORY_LOW if the data cannot be created or
SCRIBA_ERROR_FAIL if the parameter lSerial is invalid.