kc3-lang/SDL

2015-07-14T23:46:35

X11: center parentless message boxes on the primary display if possible. This relies on a successful SDL_Init(SDL_INIT_VIDEO) to work, since it's silly to reproduce all the Xinerama/XRandR code in the message box parts. If X11 is available but SDL hasn't been initialized, the message box will center in the primary screen, which will be positioned weirdly on multi-head setups, but this should fix the most significant common case.