Changeset 5224 for trunk/src/win32k/lib/libInit.c

Timestamp:

Feb 21, 2001, 8:47:59 AM (25 years ago)

Author:

bird

Message:

CallGate changes.

File:

• trunk/src/win32k/lib/libInit.c (modified) (3 diffs)

trunk/src/win32k/lib/libInit.c

@@ -1 @@
-/* $Id: libInit.c,v 1.3 2000-12-11 06:53:54 bird Exp $
+/* $Id: libInit.c,v 1.4 2001-02-21 07:47:58 bird Exp $
  *
  * Inits the Win32k library functions.
  *
- * Copyright (c) 2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
+ * Copyright (c) 2000-2001 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
  *
  * Project Odin Software License can be found in LICENSE.TXT
@@ -23 +23 @@
 #include <os2.h>
 
+#include "win32k.h"
+#include "libPrivate.h"
 
 /*******************************************************************************
@@ -56 +58 @@
 
         fInited = rc == NO_ERROR;
+
+        /*
+         * Get the callgate selector.
+         */
+        if (fInited)
+        {
+            K32QUERYCALLGATE    Param;
+            ULONG               cbParam = sizeof(Param);
+            ULONG               cbData = 0UL;
+
+            Param.hdr.cb    = sizeof(Param);
+            Param.hdr.rc    = ERROR_NOT_SUPPORTED;
+            Param.pusCGSelector = &usCGSelector;
+
+            rc = DosDevIOCtl(hWin32k,
+                             IOCTL_W32K_K32,
+                             K32_QUERYCALLGATE,
+                             &Param, sizeof(Param), &cbParam,
+                             "", 1, &cbData);
+            if (rc != NO_ERROR || Param.hdr.rc != NO_ERROR)
+            {
+                usCGSelector = 0;       /* Just to be 100% it isn't set on a failure */
+                                        /* since we checks if it's 0 to see if it's usable */
+                rc = NO_ERROR;          /* This isn't a fatal error, we may still use the IOCtls. */
+            }
+        }
     }
     else