[jimtabor] 31033: Fixed one more test, now from 23 to 22 fail. Reordered NtGdiDeleteObjectApp and created a separate function so that applications can not delete DCs belonging to DCEs. Add a check for Wnd = NULL for UserGetDCEx, this did not help the test results. Test Qemu Linux, Xp and hardware. Install and run AbiWord and FF as tests.

Author: jimtabor
Date: Thu Dec  6 05:09:56 2007
New Revision: 31033

URL: http://svn.reactos.org/svn/reactos?rev=31033&view=rev
Log:
Fixed one more test, now from 23 to 22 fail. Reordered NtGdiDeleteObjectApp and created a
separate function so that applications can not delete DCs belonging to DCEs. Add a check
for Wnd = NULL for UserGetDCEx, this did not help the test results. Test Qemu Linux, Xp
and hardware. Install and run AbiWord and FF as tests.

Modified:
    trunk/reactos/subsystems/win32/win32k/include/dc.h
    trunk/reactos/subsystems/win32/win32k/include/dce.h
    trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
    trunk/reactos/subsystems/win32/win32k/objects/dc.c
    trunk/reactos/subsystems/win32/win32k/objects/dcutil.c

Modified: trunk/reactos/subsystems/win32/win32k/include/dc.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/dc.h (original)
+++ trunk/reactos/subsystems/win32/win32k/include/dc.h Thu Dec  6 05:09:56 2007
@@ -108,12 +108,14 @@
 VOID FASTCALL DC_UnlockDisplay(HDC);
 VOID FASTCALL IntGdiCopyFromSaveState(PDC, PDC, HDC);
 VOID FASTCALL IntGdiCopyToSaveState(PDC, PDC);
+BOOL FASTCALL IntGdiDeleteDC(HDC, BOOL);
 
 VOID FASTCALL DC_UpdateXforms(PDC  dc);
 BOOL FASTCALL DC_InvertXform(const XFORM *xformSrc, XFORM *xformDest);
 
 BOOL FASTCALL DCU_SyncDcAttrtoUser(PDC);
 BOOL FASTCALL DCU_SynchDcAttrtoUser(HDC);
+VOID FASTCALL DCU_SetDcUndeletable(HDC);
 
 VOID FASTCALL IntGetViewportExtEx(PDC dc, LPSIZE pt);
 VOID FASTCALL IntGetViewportOrgEx(PDC dc, LPPOINT pt);

Modified: trunk/reactos/subsystems/win32/win32k/include/dce.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/dce.h (original)
+++ trunk/reactos/subsystems/win32/win32k/include/dce.h Thu Dec  6 05:09:56 2007
@@ -40,6 +40,7 @@
 #define DCX_DCEEMPTY		0x00000800
 #define DCX_DCEBUSY		0x00001000
 #define DCX_DCEDIRTY		0x00002000
+#define DCX_DCOWNED             0x00008000
 #define DCX_USESTYLE		0x00010000
 #define DCX_KEEPCLIPRGN		0x00040000
 #define DCX_NOCLIPCHILDREN	0x00080000

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/windc.c (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/windc.c Thu Dec  6 05:09:56 2007
@@ -161,6 +161,8 @@
     FirstDce = pDce;
     KeLeaveCriticalRegion();
 
+    DCU_SetDcUndeletable(pDce->hDC);
+
     if (Type == DCE_WINDOW_DC) //Window DCE have ownership.
      { // Process should already own it.
        pDce->pProcess = PsGetCurrentProcess();
@@ -403,8 +405,11 @@
    PWINDOW Wnd = NULL;
 
    if (NULL == Window)
-   {
-      Flags &= ~DCX_USESTYLE;
+   {  // Do the same as GetDC with a NULL.
+      Window = UserGetWindowObject(IntGetDesktopWindow());
+      if (Window) Wnd = Window->Wnd;
+      else
+         Flags &= ~DCX_USESTYLE;
    }
    else
        Wnd = Window->Wnd;
@@ -723,7 +728,8 @@
       }
      }
 
-   NtGdiDeleteObjectApp(pdce->hDC);
+   IntGdiDeleteDC(pdce->hDC, TRUE);
+
    if (pdce->hClipRgn && ! (pdce->DCXFlags & DCX_KEEPCLIPRGN))
      {
       NtGdiDeleteObject(pdce->hClipRgn);

Modified: trunk/reactos/subsystems/win32/win32k/objects/dc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/dc.c (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/dc.c Thu Dec  6 05:09:56 2007
@@ -910,29 +910,32 @@
 
 }
 
+//
+//
+//
 BOOL
-STDCALL
-NtGdiDeleteObjectApp(HANDLE  DCHandle)
-{
-  PDC  DCToDelete;
-
-  if (GDI_HANDLE_GET_TYPE(DCHandle) != GDI_OBJECT_TYPE_DC)
-     return NtGdiDeleteObject((HGDIOBJ) DCHandle);
-
-  if(IsObjectDead((HGDIOBJ)DCHandle)) return TRUE;
-
-  if (!GDIOBJ_OwnedByCurrentProcess(GdiHandleTable, DCHandle))
+FASTCALL
+IntGdiDeleteDC(HDC hDC, BOOL Force)
+{
+  BOOL Ret = FALSE;
+  PDC  DCToDelete = DC_LockDc(hDC);
+
+  if (DCToDelete == NULL)
     {
       SetLastWin32Error(ERROR_INVALID_HANDLE);
       return FALSE;
     }
 
-  DCToDelete = DC_LockDc(DCHandle);
-  if (DCToDelete == NULL)
-    {
-      SetLastWin32Error(ERROR_INVALID_HANDLE);
-      return FALSE;
-    }
+  if(!Force)
+  {
+    if (DCToDelete->DC_Flags & DC_FLAG_PERMANENT)
+    {
+         DPRINT1("No! You Naughty Application!\n");
+//       if(!UserReleaseDC(NULL, hDC, FALSE)) Ret = FALSE;
+    }
+    DC_UnlockDc( DCToDelete );
+    return Ret;
+  }
 
   /*  First delete all saved DCs  */
   while (DCToDelete->saveLevel)
@@ -995,8 +998,29 @@
   }
 
   DC_UnlockDc( DCToDelete );
-  DC_FreeDC ( DCHandle );
+  DC_FreeDC ( hDC );
   return TRUE;
+}
+
+BOOL
+STDCALL
+NtGdiDeleteObjectApp(HANDLE  DCHandle)
+{
+
+  if (GDI_HANDLE_IS_STOCKOBJ(DCHandle)) return TRUE;
+
+  if (GDI_HANDLE_GET_TYPE(DCHandle) != GDI_OBJECT_TYPE_DC)
+     return NtGdiDeleteObject((HGDIOBJ) DCHandle);
+
+  if(IsObjectDead((HGDIOBJ)DCHandle)) return TRUE;
+
+  if (!GDIOBJ_OwnedByCurrentProcess(GdiHandleTable, DCHandle))
+    {
+      SetLastWin32Error(ERROR_INVALID_HANDLE);
+      return FALSE;
+    }
+
+  return IntGdiDeleteDC(DCHandle, FALSE);
 }
 
 INT

Modified: trunk/reactos/subsystems/win32/win32k/objects/dcutil.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/dcutil.c (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/dcutil.c Thu Dec  6 05:09:56 2007
@@ -257,3 +257,19 @@
   NtGdiSelectBrush(hDC, hBrush);
   return  oldColor;
 }
+
+VOID
+FASTCALL
+DCU_SetDcUndeletable(HDC  hDC)
+{
+  PDC dc = DC_LockDc(hDC);
+  if (!dc)
+    {
+      SetLastWin32Error(ERROR_INVALID_HANDLE);
+      return;
+    }
+
+  dc->DC_Flags |= DC_FLAG_PERMANENT;
+  DC_UnlockDc( dc );
+  return;
+}