XPContext
XpCreateContext (
Display *dpy,
char *printer_name
)
{
xPrintCreateContextReq *req;
XExtensionVersion *ext;
char *locale;
int locale_len;
XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
if (XpCheckExtInit(dpy, XP_DONT_CHECK) == -1)
return ( (XPContext) None ); /* No such extension */
/*
* Fetch locale information. Note: XpGetLocaleNetString has
* a thread-safe mutex on _Xglobal_lock.
*/
locale = XpGetLocaleNetString();
LockDisplay (dpy);
GetReq(PrintCreateContext,req);
req->reqType = info->codes->major_opcode;
req->printReqType = X_PrintCreateContext;
req->contextID = XAllocID(dpy);
req->printerNameLen = strlen(printer_name);
if ( locale == (char *) NULL )
req->localeLen = 0;
else if ( *locale == (char) NULL )
req->localeLen = 0;
else {
locale_len = strlen( locale );
req->length += _XpPadOut(locale_len) >> 2;
req->localeLen = (unsigned long) locale_len;
}
/*
* Attach variable data
*/
req->length += _XpPadOut(req->printerNameLen) >> 2;
Data( dpy, (char *) printer_name, (long) req->printerNameLen );
if (req->localeLen)
Data( dpy, (char *) locale, (long) req->localeLen );
UnlockDisplay(dpy);
SyncHandle();
XFree(locale);
return ( (XPContext) req->contextID );
}
XPPrinterList
XpGetPrinterList (
Display *dpy,
char *printer_name,
int *list_count /* return value */
)
{
xPrintGetPrinterListReq *req;
xPrintGetPrinterListReply rep;
int printer_name_len, locale_len;
char *locale;
/* For decoding the variable portion of Reply */
long dataLenVR;
CARD8 *dataVR; /* aka STRING8 */
XPPrinterList ptr_list;
XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
/* For converting root winID to corresponding ScreenPtr */
int i;
if (XpCheckExtInit(dpy, XP_DONT_CHECK) == -1)
return ( (XPPrinterList) NULL ); /* No such extension */
/*
* Fetch locale information. Note: XpGetLocaleNetString has
* a thread-safe mutex on _Xglobal_lock.
*/
locale = XpGetLocaleNetString();
LockDisplay (dpy);
GetReq(PrintGetPrinterList,req);
req->reqType = info->codes->major_opcode;
req->printReqType = X_PrintGetPrinterList;
/*
* Compute lengths of variable portions.
*/
if ( printer_name == (char *) NULL )
req->printerNameLen = 0;
else if ( *printer_name == (char) NULL )
req->printerNameLen = 0;
else {
printer_name_len = strlen( printer_name );
req->length += _XpPadOut(printer_name_len) >> 2;
req->printerNameLen = (unsigned long) printer_name_len;
}
if ( locale == (char *) NULL )
req->localeLen = 0;
else if ( *locale == (char) NULL )
req->localeLen = 0;
else {
locale_len = strlen( locale );
req->length += _XpPadOut(locale_len) >> 2;
req->localeLen = (unsigned long) locale_len;
}
/*
* Attach variable data.
*/
if (req->printerNameLen)
Data( dpy, (char *) printer_name, (long) req->printerNameLen );
if (req->localeLen)
Data( dpy, (char *) locale, (long) req->localeLen );
if (! _XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* error */
}
XFree(locale);
*list_count = rep.listCount;
if (*list_count) {
ptr_list = (XPPrinterList)
Xmalloc( (unsigned) (sizeof(XPPrinterRec) * (*list_count + 1)));
if (!ptr_list) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
/*
* NULL last entry so XpFreePrinterList can work without a list_count
*/
ptr_list[*list_count].name = (char *) NULL;
ptr_list[*list_count].desc = (char *) NULL;
for ( i = 0; i < *list_count; i++ ) {
/*
* Pull printer length and then name.
*/
_XRead32 (dpy, &dataLenVR, (long) sizeof(CARD32) );
if (dataLenVR) {
dataVR = (CARD8 *) Xmalloc( (unsigned) dataLenVR + 1 );
if (!dataVR) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
_XReadPad (dpy, (char *) dataVR, (long) dataLenVR);
dataVR[dataLenVR] = 0;
ptr_list[i].name = (char *) dataVR;
}
else {
ptr_list[i].name = (char *) NULL;
}
/*
* Pull localized description length and then description.
*/
_XRead32 (dpy, &dataLenVR, (long) sizeof(CARD32) );
if (dataLenVR) {
dataVR = (CARD8 *) Xmalloc( (unsigned) dataLenVR + 1 );
if (!dataVR) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
_XReadPad (dpy, (char *) dataVR, (long) dataLenVR);
dataVR[dataLenVR] = 0;
ptr_list[i].desc = (char *) dataVR;
}
else {
ptr_list[i].desc = (char *) NULL;
}
}
}
else {
ptr_list = (XPPrinterList) NULL;
}
UnlockDisplay(dpy);
SyncHandle();
return ( ptr_list );
}
