gboolean gdk_x11_screen_supports_net_wm_hint ( GdkX11Screen* screen, const char* property_name )
This function is specific to the X11 backend of GDK, and indicates whether the window manager supports a certain hint from the Extended Window Manager Hints specification.
When using this function, keep in mind that the window manager
can change over time; so you shouldn’t use this function in
a way that impacts persistent application state. A common bug
is that your application can start up before the window manager
does when the user logs in, and before the window manager starts
gdk_x11_screen_supports_net_wm_hint() will return
FALSE for every property.
You can monitor the window_manager_changed signal on
GdkX11Screen to detect
a window manager change.
Name of the WM property.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.