diff options
Diffstat (limited to 'src/XpScreens.c')
| -rw-r--r-- | src/XpScreens.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/XpScreens.c b/src/XpScreens.c new file mode 100644 index 0000000..7283f90 --- /dev/null +++ b/src/XpScreens.c @@ -0,0 +1,124 @@ +/* $Xorg: XpScreens.c,v 1.5 2000/08/17 19:46:08 cpqbld Exp $ */ +/****************************************************************************** + ****************************************************************************** + ** + ** (c) Copyright 1996 Hewlett-Packard Company + ** (c) Copyright 1996 International Business Machines Corp. + ** (c) Copyright 1996 Sun Microsystems, Inc. + ** (c) Copyright 1996 Novell, Inc. + ** (c) Copyright 1996 Digital Equipment Corp. + ** (c) Copyright 1996 Fujitsu Limited + ** (c) Copyright 1996 Hitachi, Ltd. + ** + ** Permission is hereby granted, free of charge, to any person obtaining a copy + ** of this software and associated documentation files (the "Software"), to deal + ** in the Software without restriction, including without limitation the rights + ** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + ** copies of the Software, and to permit persons to whom the Software is + ** furnished to do so, subject to the following conditions: + ** + ** 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 + ** COPYRIGHT HOLDERS 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 names of the copyright holders shall + ** not be used in advertising or otherwise to promote the sale, use or other + ** dealings in this Software without prior written authorization from said + ** copyright holders. + ** + ****************************************************************************** + *****************************************************************************/ + +#define NEED_REPLIES + +#include "Printstr.h" +#include "Xlibint.h" +#include "extutil.h" + + +Screen ** +XpQueryScreens ( + Display *dpy, + int *list_count /* return value */ +) +{ + xPrintQueryScreensReq *req; + xPrintQueryScreensReply rep; + + /* For decoding the variable portion of Reply */ + CARD32 rootWindow; + + /* For converting root winID to corresponding ScreenPtr */ + Screen **scr_list; + Screen *checkScr; + int i,j; + + XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy); + + + if (XpCheckExtInit(dpy, XP_DONT_CHECK) == -1) + return ( (Screen **) NULL ); /* No such extension */ + + LockDisplay (dpy); + + GetReq(PrintQueryScreens,req); + req->reqType = info->codes->major_opcode; + req->printReqType = X_PrintQueryScreens; + + if (! _XReply (dpy, (xReply *) &rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return ( (Screen **) NULL ); /* error */ + } + + *list_count = rep.listCount; + + if (*list_count) { + scr_list = (Screen **) + Xmalloc( (unsigned) (sizeof(Screen *) * *list_count) ); + + if (!scr_list) { + UnlockDisplay(dpy); + SyncHandle(); + return ( (Screen **) NULL ); /* malloc error */ + } + i = 0; + while(i < *list_count){ + /* + * Pull printer length and then name. + */ + _XRead32 (dpy, (char *) &rootWindow, (long) sizeof(rootWindow) ); + scr_list[i] = NULL; + for ( j = 0; j < XScreenCount(dpy); j++ ) { + checkScr = XScreenOfDisplay(dpy, j); + if ( XRootWindowOfScreen(checkScr) == (Window) rootWindow ) { + scr_list[i] = checkScr; + break; + } + } + if(scr_list[i] == NULL) + (*list_count)--; + else + i++; + } + if(!(*list_count)) { + Xfree(scr_list); + scr_list = (Screen **) NULL; + } + } + else { + scr_list = (Screen **) NULL; + } + + UnlockDisplay(dpy); + SyncHandle(); + + return ( scr_list ); +} + |