A call in the DLL to getDefineINT is retrieving a value that was defined in GlobalDefines.xml or GlobalDefinesAlt.xml (as it is in this case).
These values can also be gotten and set via Python, as per the line
gc.setDefineINT("DCM_BATTLE_EFFECTS", RevDCMOpt.isDCM_BATTLE_EFFECTS())
that appears a couple of places in RevDCM.py, where the "RevDCMOpt.isDCM_BATTLE_EFFECTS()" function is defined by BUG and as per the RevDCM.xml as the function to retrieve the setting of the DCM_BATTLE_EFFECTS boolean option (not the defined int of the same name) - BUG creates this (and other) functions based on the <option ...> data in the config XML file.
This would be a little less confusing if the RevDCM BUG option did not have the exact same name as the XML value in GlobalDefinesAlt.xml.