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from cffi import FFI
ffi = FFI()
ffi.cdef("""
typedef ... Display;
typedef struct { ...; } Window;
typedef struct { int type; ...; } XEvent;
Display *XOpenDisplay(char *display_name);
Window DefaultRootWindow(Display *display);
int XMapRaised(Display *display, Window w);
Window XCreateSimpleWindow(Display *display, Window parent, int x, int y,
unsigned int width, unsigned int height,
unsigned int border_width, unsigned long border,
unsigned long background);
int XNextEvent(Display *display, XEvent *event_return);
""")
lib = ffi.verify("""
#include <X11/Xlib.h>
""", libraries=['X11'])
globals().update(lib.__dict__)
class XError(Exception):
pass
def main():
display = XOpenDisplay(ffi.NULL)
if display == ffi.NULL:
raise XError("cannot open display")
w = XCreateSimpleWindow(display, DefaultRootWindow(display),
10, 10, 500, 350, 0, 0, 0)
XMapRaised(display, w)
event = ffi.new("XEvent *")
XNextEvent(display, event)
if __name__ == '__main__':
main()
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