/* $XConsortium: XStBytes.c,v 11.20 91/01/08 14:41:56 gildea Exp $ */ /* Copyright Massachusetts Institute of Technology 1986 */ /* 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, and that the name of M.I.T. not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. M.I.T. makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. */ #include <X11/Xlibint.h> #include <X11/Xatom.h> /* insulate predefined atom numbers from cut routines */ static Atom n_to_atom[8] = { XA_CUT_BUFFER0, XA_CUT_BUFFER1, XA_CUT_BUFFER2, XA_CUT_BUFFER3, XA_CUT_BUFFER4, XA_CUT_BUFFER5, XA_CUT_BUFFER6, XA_CUT_BUFFER7}; XRotateBuffers (dpy, rotate) register Display *dpy; int rotate; { XRotateWindowProperties(dpy, RootWindow(dpy, 0), n_to_atom, 8, rotate); } char *XFetchBuffer (dpy, nbytes, buffer) register Display *dpy; int *nbytes; register int buffer; { Atom actual_type; int actual_format; unsigned long nitems; unsigned long leftover; unsigned char *data; *nbytes = 0; if ((buffer < 0) || (buffer > 7)) return (NULL); /* XXX should be (sizeof (maxint) - 1)/4 */ if (XGetWindowProperty(dpy, RootWindow(dpy, 0), n_to_atom[buffer], 0L, 10000000L, False, XA_STRING, &actual_type, &actual_format, &nitems, &leftover, &data) != Success) { return (NULL); } if ( (actual_type == XA_STRING) && (actual_format != 32) ) { *nbytes = nitems; return((char *)data); } if ((char *) data != NULL) Xfree ((char *)data); return(NULL); } char *XFetchBytes (dpy, nbytes) register Display *dpy; int *nbytes; { return (XFetchBuffer (dpy, nbytes, 0)); } #if NeedFunctionPrototypes XStoreBuffer ( register Display *dpy, _Xconst char *bytes, int nbytes, register int buffer) #else XStoreBuffer (dpy, bytes, nbytes, buffer) register Display *dpy; char *bytes; int nbytes; register int buffer; #endif { if ((buffer < 0) || (buffer > 7)) return; XChangeProperty(dpy, RootWindow(dpy, 0), n_to_atom[buffer], XA_STRING, 8, PropModeReplace, (unsigned char *) bytes, nbytes); } #if NeedFunctionPrototypes XStoreBytes ( register Display *dpy, _Xconst char *bytes, int nbytes) #else XStoreBytes (dpy, bytes, nbytes) register Display *dpy; char *bytes; int nbytes; #endif { XStoreBuffer (dpy, bytes, nbytes, 0); }