diff --git a/reactos/include/reactos/drivers/directx/dxeng.h b/reactos/include/reactos/drivers/directx/dxeng.h
index 0d1da57c1c7..0b43e8ef666 100644
--- a/reactos/include/reactos/drivers/directx/dxeng.h
+++ b/reactos/include/reactos/drivers/directx/dxeng.h
@@ -1,4 +1,5 @@
 
+
 /************************************************************************/
 /* These functions are imported from win32k.sys by dxg.sys              */
 /************************************************************************/
@@ -96,15 +97,15 @@ BOOLEAN STDCALL DxEngSetDeviceGammaRamp(HDEV hPDev, PGAMMARAMP Ramp, BOOL Unuse)
 BOOLEAN STDCALL DxEngCleanDC(HDC hdc);
 BOOLEAN STDCALL DxEngIncDispUniq();
 
-DWORD STDCALL DxEngCreateMemoryDC(DWORD x1);
+HDC STDCALL DxEngCreateMemoryDC(HDEV hDev);
 
 DWORD STDCALL DxEngIsHdevLockedByCurrentThread(DWORD x1);
 DWORD STDCALL DxEngUnreferenceHdev(DWORD x1);
 DWORD STDCALL DxEngSpTearDownSprites(DWORD x1, DWORD x2, DWORD x3);
 DWORD STDCALL DxEngSpUnTearDownSprites(DWORD x1, DWORD x2, DWORD x3);
 DWORD STDCALL DxEngSpSpritesVisible(DWORD x1);
-HDC STDCALL DxEngGetDesktopDC(BOOLEAN CreateDesktopDc, DWORD x2, DWORD x3);
-DWORD STDCALL DxEngDeleteDC(HDC hdc, DWORD x2);
+HDC STDCALL DxEngGetDesktopDC(ULONG DcType, BOOL EmptyDC, BOOL ValidatehWnd);
+BOOLEAN STDCALL DxEngDeleteDC(HDC hdc, BOOL Force);
 DWORD STDCALL DxEngSetDCState(DWORD x1, DWORD x2, DWORD x3);
 DWORD STDCALL DxEngSelectBitmap(DWORD x1, DWORD x2);
 DWORD STDCALL DxEngSetBitmapOwner(DWORD x1, DWORD x2);
diff --git a/reactos/subsystems/win32/win32k/ntddraw/dxeng.c b/reactos/subsystems/win32/win32k/ntddraw/dxeng.c
index 6743aaafdc4..7b960179618 100644
--- a/reactos/subsystems/win32/win32k/ntddraw/dxeng.c
+++ b/reactos/subsystems/win32/win32k/ntddraw/dxeng.c
@@ -1,4 +1,4 @@
-/*
+  /*
  * PROJECT:          ReactOS Win32 Subsystem
  * LICENSE:          GPL - See COPYING in the top level directory
  * FILE:             subsystems/win32/win32k/ntddraw/dxeng.c
@@ -658,12 +658,12 @@ DxEngEnumerateHdev(HDEV *hdev)
 /************************************************************************/
 /* DxEngCreateMemoryDC                                                  */
 /************************************************************************/
-DWORD
+HDC
 STDCALL
-DxEngCreateMemoryDC(DWORD x1)
+DxEngCreateMemoryDC(HDEV hDev)
 {
     UNIMPLEMENTED;
-    return FALSE;
+    return NULL;
 }
 
 /************************************************************************/
@@ -705,12 +705,12 @@ DxEngUnreferenceHdev(DWORD x1)
 /************************************************************************/
 HDC
 STDCALL
-DxEngGetDesktopDC(BOOLEAN CreateDesktopDc, DWORD x2, DWORD x3)
+DxEngGetDesktopDC(ULONG DcType, BOOL EmptyDC, BOOL ValidatehWnd)
 {
     PWINDOW_OBJECT DesktopObject = 0;
     HDC DesktopHDC = 0;
 
-    if (CreateDesktopDc == FALSE)
+    if (DcType == DC_TYPE_DIRECT)
     {        
         DesktopObject = UserGetDesktopWindow();
         DesktopHDC = (HDC)UserGetWindowDC(DesktopObject);
@@ -726,13 +726,11 @@ DxEngGetDesktopDC(BOOLEAN CreateDesktopDc, DWORD x2, DWORD x3)
 /************************************************************************/
 /* DxEngDeleteDC                                                        */
 /************************************************************************/
-DWORD
+BOOLEAN
 STDCALL
-DxEngDeleteDC(HDC hdc, DWORD x2)
+DxEngDeleteDC(HDC hdc, BOOL Force)
 {
-
-    UNIMPLEMENTED;
-    return FALSE;
+   return IntGdiDeleteDC(hdc, Force);
 }
 
 /************************************************************************/