XSetWMProtocols(), XGetWMProtocols() - set or read a window's WM_PROTOCOLS property
Status XSetWMProtocols (Display *display, Window w,
Atom *protocols, int count)
Status XGetWMProtocols (Display *display, Window w,
Atom **protocols_return, int *count_return)
The XSetWMProtocols(3) function replaces the WM_PROTOCOLS property on the specified window with the list of atoms specified by the protocols argument. If the property does not already exist, XSetWMProtocols(3) sets the WM_PROTOCOLS property 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(3) returns a zero status. Otherwise, it returns a nonzero status.
XSetWMProtocols(3) can generate BadAlloc and BadWindow errors.
The XGetWMProtocols(3) 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 property exists, is of type ATOM, is of format 32, and the atom WM_PROTOCOLS can be interned, XGetWMProtocols(3) sets the protocols_return argument to a list of atoms, sets the count_return argument to the number of elements in the list, and returns a nonzero status. Otherwise, it sets neither of the return arguments and returns a zero status. To release the list of atoms, use XFree(3).
XGetWMProtocols(3) can generate a BadWindow error.
XFree()
Xlib
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