Zhiyi Zhang (@zhiyi) commented about dlls/winemac.drv/display.c:
send_message(NtUserGetDesktopWindow(), WM_MACDRV_UPDATE_DESKTOP_RECT, mode_bpp, MAKELPARAM(width, height));
ret = DISP_CHANGE_SUCCESSFUL;
Why are you removing this? How can ret be DISP_CHANGE_SUCCESSFUL?