How to determine whether a window has an embedded title bar?...

Is reading a X11 Property of type UTF8_STRING guaranteed to end with NULL?...

custom window manager: Some GTK+ 3 windows receive focus but will not accept mouse clicks...

How to identify top-level X11 windows using xlib?...

X11 XM_NAME type is 'UTF-8' rather than STRING_UTF8...

X11, how to detect I’m the last window/application on the display...