Fix the issue. Tests pass but would need some review because it's

slightly fragile...  But it's enough to have the simple xclient.py
demo work.

1 files changed, 40 insertions, 0 deletions

diff --git a/demo/xclient.py b/demo/xclient.py
new file mode 100644
index 0000000..8bc05bd
--- /dev/null
+++ b/demo/xclient.py
@@ -0,0 +1,40 @@
+from cffi import FFI
+
+ffi = FFI()
+ffi.cdef("""
+
+typedef ... Display;
+typedef unsigned int Window;   /* 32-bit integer */
+
+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(None)
+    if display is None:
+        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()