- In the process of rewriting IntGdiCreateDisplayDC, making it an intermediate level support function for IntGdiCreateDC.

svn path=/trunk/; revision=41744

reactos/subsystems/win32/win32k/include/desktop.h

@@ -110,22 +110,17 @@ IntValidateDesktopHandle(
    KPROCESSOR_MODE AccessMode,
    ACCESS_MASK DesiredAccess,
    PDESKTOP *Object);
-
 NTSTATUS FASTCALL
 IntParseDesktopPath(PEPROCESS Process,
                     PUNICODE_STRING DesktopPath,
                     HWINSTA *hWinSta,
                     HDESK *hDesktop);
-
-BOOL FASTCALL
-IntDesktopUpdatePerUserSettings(BOOL bEnable);
-
+BOOL FASTCALL IntDesktopUpdatePerUserSettings(BOOL bEnable);
 VOID APIENTRY UserRedrawDesktop(VOID);
-
 BOOL IntRegisterShellHookWindow(HWND hWnd);
 BOOL IntDeRegisterShellHookWindow(HWND hWnd);
-
 VOID co_IntShellHookNotify(WPARAM Message, LPARAM lParam);
+HDC FASTCALL UserGetDesktopDC(ULONG,BOOL,BOOL);
 
 #define IntIsActiveDesktop(Desktop) \
   ((Desktop)->WindowStation->ActiveDesktop == (Desktop))

reactos/subsystems/win32/win32k/ntddraw/dxeng.c

@@ -698,20 +698,7 @@ HDC
 APIENTRY
 DxEngGetDesktopDC(ULONG DcType, BOOL EmptyDC, BOOL ValidatehWnd)
 {
-    PWINDOW_OBJECT DesktopObject = 0;
-    HDC DesktopHDC = 0;
-
-    if (DcType == DC_TYPE_DIRECT)
-    {        
-        DesktopObject = UserGetDesktopWindow();
-        DesktopHDC = (HDC)UserGetWindowDC(DesktopObject);
-    }
-    else
-    {
-        UNIMPLEMENTED;
-    }
-
-    return DesktopHDC;
+    return UserGetDesktopDC(DcType, EmptyDC, ValidatehWnd);
 }
 
 /************************************************************************/

reactos/subsystems/win32/win32k/ntuser/desktop.c

@@ -618,6 +618,27 @@ BOOL FASTCALL IntDesktopUpdatePerUserSettings(BOOL bEnable)
 
 /* PUBLIC FUNCTIONS ***********************************************************/
 
+HDC FASTCALL
+UserGetDesktopDC(ULONG DcType, BOOL EmptyDC, BOOL ValidatehWnd)
+{
+    PWINDOW_OBJECT DesktopObject = 0;
+    HDC DesktopHDC = 0;
+
+    if (DcType == DC_TYPE_DIRECT)
+    {        
+        DesktopObject = UserGetDesktopWindow();
+        DesktopHDC = (HDC)UserGetWindowDC(DesktopObject);
+    }
+    else
+    {
+        HDEV hDev;
+        hDev = (HDEV)pPrimarySurface;
+        DesktopHDC = IntGdiCreateDisplayDC(hDev, DcType, EmptyDC);
+    }
+
+    return DesktopHDC;
+}
+
 VOID APIENTRY
 UserRedrawDesktop()
 {

reactos/subsystems/win32/win32k/objects/dclife.c

@@ -432,6 +432,7 @@ IntGdiCreateDisplayDC(HDEV hDev, ULONG DcType, BOOL EmptyDC)
 
 //
 // If NULL, first time through! Build the default (was window) dc!
+// Setup clean DC state for the system.
 //
     if (hDC && !defaultDCstate) // Ultra HAX! Dedicated to GvG!
     { // This is a cheesy way to do this.