XSetWMProtocols(3X11)RISC/os Reference ManuaXSetWMProtocols(3X11)



NAME
     XSetWMProtocols, XGetWMProtocols - set or read a window's
     WM_PROTOCOLS property

SYNTAX
     Status XSetWMProtocols(display, w, protocols, count)
           Display *display;
           Window w;
           Atom *protocols;
           int count;

     Status XGetWMProtocols(display, w, protocols_return,
     count_return)
           Display *display;
           Window w;
           Atom **protocols_return;
           int *count_return;

ARGUMENTS
     display   Specifies the connection to the X server.

     count     Specifies the number of protocols in the list.

     count_return
               Returns the number of protocols in the list.

     protocols Specifies the list of protocols.

     protocols_return
               Returns the list of protocols.

DESCRIPTION
     The XSetWMProtocols function replaces the WM_PROTOCOLS pro-
     perty on the specified window with the list of atoms speci-
     fied by the protocols argument.  If the property does not
     already exist, XSetWMProtocols sets the WM_PROTOCOLS pro-
     perty on the specified window to the list of atoms specified
     by the protocols argument.  The property is stored with a
     type of ATOM and a format of 32.  If it cannot intern the
     WM_PROTOCOLS atom, XSetWMProtocols returns a zero status.
     Otherwise, it returns a non-zero status.

     XSetWMProtocols can generate BadAlloc and BadWindow errors.

     The XGetWMProtocols function returns the list of atoms
     stored in the WM_PROTOCOLS property on the specified window.
     These atoms describe window manager protocols in which the
     owner of this window is willing to participate.  If the pro-
     perty exists, is of type ATOM, is of format 32, and the atom
     WM_PROTOCOLS can be interned, XGetWMProtocols sets the
     protocols_return argument to a list of atoms, sets the
     count_return argument to the number of elements in list, and



                         Printed 1/24/91         Release 4 Page 1

XSetWMProtocols(3X11)RISC/os Reference ManuaXSetWMProtocols(3X11)



     returns a a non-zero status.  Otherwise, it sets neither of
     the return arguments and returns a zero status.  To release
     the list of atom, use XFree.

     XGetWMProtocols can generate a BadWindow error.

PROPERTIES
     WM_PROTOCOLS
               List of atoms that identify the communications
               protocols between the client and window manager in
               which the client is willing to participate.

DIAGNOSTICS
     BadAlloc  The server failed to allocate the requested
               resource or server memory.

     BadWindow A value for a Window argument does not name a
               defined Window.

SEE ALSO
     XAllocClassHint(3X11), XAllocIconSize(3X11),
     XAllocSizeHints(3X11), XAllocWMHints(3X11), XFree(3X11),
     XSetCommand(3X11), XSetTransientForHint(3X11),
     XSetTextProperty(3X11), XSetWMClientMachine(3X11),
     XSetWMColormapWindows(3X11), XSetWMIconName(3X11),
     XSetWMName(3X11), XSetWMProperties(3X11),
     XStringListToTextProperty(3X11)
     Xlib - C Language X Interface



























Release 4 Page 2         Printed 1/24/91