XDefineCursor, XUndefineCursor - define cursors

cursor    Specifies the cursor that is to be displayed or None.

       display   Specifies the connection to the X server.

       w         Specifies the window.

       If  a  cursor  is  set,  it will be used when the pointer is in the window.  If the cursor is None, it is
       equivalent to XUndefineCursor.

       XDefineCursor can generate BadCursor and BadWindow errors.

       The XUndefineCursor function undoes the effect of a previous XDefineCursor for  this  window.   When  the
       pointer  is  in the window, the parent's cursor will now be used.  On the root window, the default cursor
       is restored.

       XUndefineCursor can generate a BadWindow error.

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

       BadCursor A value for a Cursor argument does not name a defined Cursor.

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

       XDefineCursor, XUndefineCursor - define cursors

XCreateFontCursor(3), XRecolorCursor(3)
       Xlib-CLanguageXInterface

X Version 11                                      libX11 1.8.12                                 XDefineCursor(3)

       int XDefineCursor(Display *display, Window w, Cursor cursor);

       int XUndefineCursor(Display *display, Window w);