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Annotation of researchv9/X11/src/X.V11R1/lib/X/XQuTree.c, revision 1.1

1.1     ! root        1: #include "copyright.h"
        !             2: 
        !             3: /* $Header: XQuTree.c,v 11.15 87/09/11 08:06:20 toddb Exp $ */
        !             4: /* Copyright    Massachusetts Institute of Technology    1986  */
        !             5: 
        !             6: #define NEED_REPLIES
        !             7: #include "Xlibint.h"
        !             8: 
        !             9: Status XQueryTree (dpy, w, root, parent, children, nchildren)
        !            10:     register Display *dpy;
        !            11:     Window w;
        !            12:     Window *root;
        !            13:     Window *parent;  /* RETURN */
        !            14:     Window **children; /* RETURN */
        !            15:     unsigned int *nchildren;  /* RETURN */
        !            16: {
        !            17:     long nbytes;
        !            18:     xQueryTreeReply rep;
        !            19:     register xResourceReq *req;
        !            20: 
        !            21:     LockDisplay(dpy);
        !            22:     GetResReq(QueryTree, w, req);
        !            23:     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
        !            24:        UnlockDisplay(dpy);
        !            25:        SyncHandle();
        !            26:        return (0);
        !            27:        }
        !            28:     *parent = rep.parent;
        !            29:     *root = rep.root;
        !            30:     *nchildren = rep.nChildren;
        !            31:     *children = (Window *) NULL;
        !            32:     if (rep.nChildren != 0) {
        !            33:       *children = (Window *) Xmalloc (
        !            34:            (unsigned)(nbytes = rep.nChildren * sizeof(Window)));
        !            35:       _XRead (dpy, (char *) *children, nbytes);
        !            36:     }
        !            37:        /* Note: won't work if sizeof(Window) is not 32 bits! */
        !            38:     UnlockDisplay(dpy);
        !            39:     SyncHandle();
        !            40:     return (1);
        !            41: }
        !            42: 

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