Example of making debug output in Ironfist

debug.cpp

extern int __fastcall InitMenuHandler_orig(struct tag_message & msg);
extern font* smallFont;
extern font* bigFont;
extern heroWindow* gpInitWin;
extern void __fastcall FillBitmapArea(class bitmap *, int, int, int, int, int);

int __fastcall InitMenuHandler(struct tag_message & msg) {
  if (msg.eventCode == INPUT_MOUSEMOVE_EVENT_CODE) {
    FillBitmapArea(gpWindowManager->screenBuffer, 0, 0, 100, 30, 0);
    char buf[100];
    sprintf(buf, "%d,%d", msg.altXCoord, msg.altYCoord);
    bigFont->DrawBoundedString(buf, 10, 10, 100, 30, 0, 0);
    gpWindowManager->UpdateScreenRegion(0, 0, 640, 480);
  }
  return InitMenuHandler_orig(msg);
}