diff options
Diffstat (limited to 'libX11/src/QuTree.c')
-rw-r--r-- | libX11/src/QuTree.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/libX11/src/QuTree.c b/libX11/src/QuTree.c new file mode 100644 index 000000000..3fd72f050 --- /dev/null +++ b/libX11/src/QuTree.c @@ -0,0 +1,75 @@ +/* $Xorg: QuTree.c,v 1.4 2001/02/09 02:03:35 xorgcvs Exp $ */ +/* + +Copyright 1986, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ +/* $XFree86: xc/lib/X11/QuTree.c,v 1.5 2001/01/17 19:41:42 dawes Exp $ */ + +#define NEED_REPLIES +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" + +Status XQueryTree ( + register Display *dpy, + Window w, + Window *root, /* RETURN */ + Window *parent, /* RETURN */ + Window **children, /* RETURN */ + unsigned int *nchildren) /* RETURN */ +{ + long nbytes; + xQueryTreeReply rep; + register xResourceReq *req; + + LockDisplay(dpy); + GetResReq(QueryTree, w, req); + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return (0); + } + + *children = (Window *) NULL; + if (rep.nChildren != 0) { + nbytes = rep.nChildren * sizeof(Window); + *children = (Window *) Xmalloc((unsigned) nbytes); + nbytes = rep.nChildren << 2; + if (! *children) { + _XEatData(dpy, (unsigned long) nbytes); + UnlockDisplay(dpy); + SyncHandle(); + return (0); + } + _XRead32 (dpy, (long *) *children, nbytes); + } + *parent = rep.parent; + *root = rep.root; + *nchildren = rep.nChildren; + UnlockDisplay(dpy); + SyncHandle(); + return (1); +} + |