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xfree(3x11) [osf1 man page]

XFree(3X11)															       XFree(3X11)

NAME
XFree - free client data SYNOPSIS
XFree(data) void *data; ARGUMENTS
Specifies the data that is to be freed. DESCRIPTION
The XFree function is a general-purpose Xlib routine that frees the specified data. You must use it to free any objects that were allocated by Xlib, unless an alternate function is explicitly specified for the object. A NULL pointer cannot be passed to this function. SEE ALSO
Xlib -- C Language X Interface XFree(3X11)

Check Out this Related Man Page

XQueryTree(3X11)						  XLIB FUNCTIONS						  XQueryTree(3X11)

NAME
XQueryTree - query window tree information SYNTAX
Status XQueryTree(display, w, root_return, parent_return, children_return, nchildren_return) Display *display; Window w; Window *root_return; Window *parent_return; Window **children_return; unsigned int *nchildren_return; ARGUMENTS
children_return Returns the list of children. display Specifies the connection to the X server. nchildren_return Returns the number of children. parent_return Returns the parent window. root_return Returns the root window. you want to obtain w Specifies the window whose list of children, root, parent, and number of children. DESCRIPTION
The XQueryTree function returns the root ID, the parent window ID, a pointer to the list of children windows (NULL when there are no chil- dren), and the number of children in the list for the specified window. The children are listed in current stacking order, from bottom- most (first) to top-most (last). XQueryTree returns zero if it fails and nonzero if it succeeds. To free a non-NULL children list when it is no longer needed, use XFree. BUGS
This really should return a screen *, not a root window ID. SEE ALSO
XFree(3X11), XGetWindowAttributes(3X11), XQueryPointer(3X11) Xlib - C Language X Interface X Version 11 Release 6.6 XQueryTree(3X11)
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