Type Mac WINMAIN_GetQuitGame as BOOL __cdecl (void)
Mac body reads no args and returns the quit-game global in EAX; plain RET. Its caller SendExitGameRequest tests the result (CALL 0x0007234e then TEST EAX,EAX at 0x00072356).
Changes 1, applied together
Set prototype
mac 0x0005dc50signatureundefined WINMAIN_GetQuitGame(void)→BOOL WINMAIN_GetQuitGame(void)conventionunknown→__cdecl