The fsVarsZVarGet function can be used to get the value of a specific ZVar.

 

Syntax
FsVarError fsVarsZVarGet(
    FsZVarId zVarId,
    FsUnitId unitId,
    double* result,
    FsObjectId target
);

 

Parameters
ParametersDescription
zVarId

The ID of an ZVar (found using fsVarsGetZVarId or fsVarsRegisterZVar).

unitIdThe ID of a unit (found using fsVarsGetUnitId).
resultThe variable that will receive the value of the ZVar (if the other parameters are correct).
target

The ID of the object from which the variable is being retrieved.

 

Return Values

The function returns FsVarError, where 0 means there is no error (in which case, the value of the ZVar has been set in result).

 

Example
FsUnitId unitId = fsVarsGetUnitId("DEGREES");
FsZVarId zVarId = fsVarsRegisterZVar("Toto");
double result = 0;
if (fsVarsZVarGet(zVarId, unitId, &result) == FS_VAR_ERROR_NONE)
{
    // valid
}
else
{
    // error
}