GetObjNext Macro

// This is the same example for the GetObjType() macro
// We just replaced one line
void RedrawButtons(void) {
    OBJ_HEADER *pCurr;
    
    pCurr = GOLGetList();               // get active list
    while(pCurr->pNxtObj != NULL) {
        if (GetObjType(pCurr) == BUTTON)
            pCurr->state = BTN_DRAW;    // set button to be redrawn
        pCurr = GetObjNext(pCurr);      // Use of GetObjNext() macro
        // replaces the old line
    }
    GolDraw();                          // redraw all buttons in the
                                        // active list
}