GM_SetLayerLabelAttribute

GM_DLL_EXPORTED GM_Error_t32 __stdcall GM_SetLayerLabelAttribute
(
GM_LayerHandle_t32      aLayer,             // Layer to modify labels for
const char*             aAttrName,          // Name of attribute to use for naming labels
uint32                  aReserved           // Reserved value for future expansion (must be zero)
);