diff --git a/win32ss/gdi/gdi32/include/gdi32p.h b/win32ss/gdi/gdi32/include/gdi32p.h
index c979ee9eee0..50c13f856a2 100644
--- a/win32ss/gdi/gdi32/include/gdi32p.h
+++ b/win32ss/gdi/gdi32/include/gdi32p.h
@@ -740,4 +740,6 @@ METADC_GetAndSetDCDWord(
     _In_ USHORT usMF16Id,
     _In_ DWORD dwError);
 
+HDC WINAPI GdiConvertAndCheckDC(HDC hdc);
+
 /* EOF */
diff --git a/win32ss/gdi/gdi32/objects/arc.c b/win32ss/gdi/gdi32/objects/arc.c
index 37dd5145d0f..444b05a295b 100644
--- a/win32ss/gdi/gdi32/objects/arc.c
+++ b/win32ss/gdi/gdi32/objects/arc.c
@@ -26,6 +26,8 @@ Arc(
                   xEndArc,
                   yEndArc);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiArcInternal(GdiTypeArc,
                             hdc,
                             xLeft,
@@ -62,6 +64,8 @@ AngleArc(
                   RCAST(DWORD, eStartAngle),
                   RCAST(DWORD, eSweepAngle));
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiAngleArc(hdc,
                          x,
                          y,
@@ -96,6 +100,8 @@ ArcTo(
                   xRadial2,
                   yRadial2);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiArcInternal(GdiTypeArcTo,
                             hdc,
                             xLeft,
@@ -134,6 +140,8 @@ Chord(
                   xRadial2,
                   yRadial2);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiArcInternal(GdiTypeChord,
                             hdc,
                             xLeft,
@@ -176,6 +184,8 @@ Pie(
                   xRadial2,
                   yRadial2);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiArcInternal(GdiTypePie,
                             hdc,
                             xLeft,
diff --git a/win32ss/gdi/gdi32/objects/bitmap.c b/win32ss/gdi/gdi32/objects/bitmap.c
index 050cc031032..a3f4c482c6f 100644
--- a/win32ss/gdi/gdi32/objects/bitmap.c
+++ b/win32ss/gdi/gdi32/objects/bitmap.c
@@ -691,6 +691,34 @@ SetDIBitsToDevice(
                   lpbmi,
                   ColorUse);
 
+    // Handle the "Special Case"!
+    {
+        PLDC pldc;
+        ULONG hType = GDI_HANDLE_GET_TYPE(hdc);
+        if (hType != GDILoObjType_LO_DC_TYPE && hType != GDILoObjType_LO_METADC16_TYPE)
+        {
+            pldc = GdiGetLDC(hdc);
+            if (pldc)
+            {
+                if (pldc->Flags & LDC_STARTPAGE) StartPage(hdc);
+
+                if (pldc->Flags & LDC_SAPCALLBACK) GdiSAPCallback(pldc);
+
+                if (pldc->Flags & LDC_KILL_DOCUMENT)
+                {
+                    LinesCopied = 0;
+                    goto Exit;
+                }
+            }
+            else
+            {
+                SetLastError(ERROR_INVALID_HANDLE);
+                LinesCopied = 0;
+                goto Exit;
+            }
+        }
+    }
+
     if ((pConvertedInfo->bmiHeader.biCompression == BI_RLE8) ||
             (pConvertedInfo->bmiHeader.biCompression == BI_RLE4))
     {
@@ -742,6 +770,7 @@ SetDIBitsToDevice(
             TRUE,
             NULL);
     }
+Exit:
     if (Bits != pvSafeBits)
         RtlFreeHeap(RtlGetProcessHeap(), 0, pvSafeBits);
     if (lpbmi != pConvertedInfo)
@@ -826,6 +855,9 @@ StretchDIBits(
         }
     }
 #endif
+
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return 0;
+
     pConvertedInfo = ConvertBitmapInfo(lpBitsInfo, iUsage, &ConvertedInfoSize,
         FALSE);
     if (!pConvertedInfo)
diff --git a/win32ss/gdi/gdi32/objects/painting.c b/win32ss/gdi/gdi32/objects/painting.c
index f41e7a78ab7..2f9564ceb22 100644
--- a/win32ss/gdi/gdi32/objects/painting.c
+++ b/win32ss/gdi/gdi32/objects/painting.c
@@ -13,6 +13,8 @@ LineTo(
 {
     HANDLE_METADC(BOOL, LineTo, FALSE, hdc, x, y);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiLineTo(hdc, x, y);
 }
 
@@ -75,6 +77,8 @@ Ellipse(
 {
     HANDLE_METADC(BOOL, Ellipse, FALSE, hdc, left, top, right, bottom);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiEllipse(hdc, left, top, right, bottom);
 }
 
@@ -93,6 +97,8 @@ Rectangle(
 {
     HANDLE_METADC(BOOL, Rectangle, FALSE, hdc, left, top, right, bottom);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiRectangle(hdc, left, top, right, bottom);
 }
 
@@ -113,6 +119,8 @@ RoundRect(
 {
     HANDLE_METADC(BOOL, RoundRect, FALSE, hdc, left, top, right, bottom, width, height);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiRoundRect(hdc, left, top, right, bottom, width, height);
 }
 
@@ -146,6 +154,8 @@ SetPixel(
 {
     HANDLE_METADC(COLORREF, SetPixel, CLR_INVALID, hdc, x, y, crColor);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiSetPixel(hdc, x, y, crColor);
 }
 
@@ -181,6 +191,8 @@ FillRgn(
 
     HANDLE_METADC(BOOL, FillRgn, FALSE, hdc, hrgn, hbr);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiFillRgn(hdc, hrgn, hbr);
 }
 
@@ -203,6 +215,8 @@ FrameRgn(
 
     HANDLE_METADC(BOOL, FrameRgn, FALSE, hdc, hrgn, hbr, nWidth, nHeight);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiFrameRgn(hdc, hrgn, hbr, nWidth, nHeight);
 }
 
@@ -222,6 +236,8 @@ InvertRgn(
 
     HANDLE_METADC(BOOL, InvertRgn, FALSE, hdc, hrgn);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiInvertRgn(hdc, hrgn);
 }
 
@@ -251,6 +267,8 @@ PolyBezier(
 {
     HANDLE_METADC(BOOL, PolyBezier, FALSE, hdc, apt, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc ,(PPOINT)apt, &cpt, 1, GdiPolyBezier);
 }
 
@@ -267,6 +285,8 @@ PolyBezierTo(
 {
     HANDLE_METADC(BOOL, PolyBezierTo, FALSE, hdc, apt, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc , (PPOINT)apt, &cpt, 1, GdiPolyBezierTo);
 }
 
@@ -284,6 +304,8 @@ PolyDraw(
 {
     HANDLE_METADC(BOOL, PolyDraw, FALSE, hdc, apt, aj, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyDraw(hdc, (PPOINT)apt, (PBYTE)aj, cpt);
 }
 
@@ -300,6 +322,8 @@ Polygon(
 {
     HANDLE_METADC(BOOL, Polygon, FALSE, hdc, apt, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc , (PPOINT)apt, (PULONG)&cpt, 1, GdiPolyPolygon);
 }
 
@@ -316,6 +340,8 @@ Polyline(
 {
     HANDLE_METADC(BOOL, Polyline, FALSE, hdc, apt, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc, (PPOINT)apt, (PULONG)&cpt, 1, GdiPolyPolyLine);
 }
 
@@ -332,6 +358,8 @@ PolylineTo(
 {
     HANDLE_METADC(BOOL, PolylineTo, FALSE, hdc, apt, cpt);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc , (PPOINT)apt, &cpt, 1, GdiPolyLineTo);
 }
 
@@ -349,6 +377,8 @@ PolyPolygon(
 {
     HANDLE_METADC(BOOL, PolyPolygon, FALSE, hdc, apt, asz, csz);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc, (PPOINT)apt, (PULONG)asz, csz, GdiPolyPolygon);
 }
 
@@ -369,6 +399,8 @@ PolyPolyline(
 
     HANDLE_METADC(BOOL, PolyPolyline, FALSE, hdc, apt, asz, csz);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiPolyPolyDraw(hdc , (PPOINT)apt, (PULONG)asz, csz, GdiPolyPolyLine);
 }
 
@@ -387,6 +419,8 @@ ExtFloodFill(
 {
     HANDLE_METADC(BOOL, ExtFloodFill, FALSE, hdc, xStart, yStart, crFill, fuFillType);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiExtFloodFill(hdc, xStart, yStart, crFill, fuFillType);
 }
 
@@ -443,6 +477,8 @@ BitBlt(
                   cx,
                   dwRop);
 
+    if ( GdiConvertAndCheckDC(hdcDest) == NULL ) return FALSE;
+
     return NtGdiBitBlt(hdcDest, xDest, yDest, cx, cy, hdcSrc, xSrc, ySrc, dwRop, 0, 0);
 }
 
@@ -460,6 +496,8 @@ PatBlt(
 
     HANDLE_METADC(BOOL, PatBlt, FALSE, hdc, nXLeft, nYLeft, nWidth, nHeight, dwRop);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     /* Get the DC attribute */
     pdcattr = GdiGetDcAttr(hdc);
     if (pdcattr && !(pdcattr->ulDirty_ & DC_DIBSECTION))
@@ -612,6 +650,8 @@ StretchBlt(
                   cySrc,
                   dwRop);
 
+    if ( GdiConvertAndCheckDC(hdcDest) == NULL ) return FALSE;
+
     return NtGdiStretchBlt(hdcDest,
                            xDest,
                            yDest,
@@ -662,6 +702,8 @@ MaskBlt(
                   yMask,
                   dwRop);
 
+    if ( GdiConvertAndCheckDC(hdcDest) == NULL ) return FALSE;
+
     return NtGdiMaskBlt(hdcDest,
                         xDest,
                         yDest,
@@ -709,6 +751,8 @@ PlgBlt(
                   xMask,
                   yMask);
 
+    if ( GdiConvertAndCheckDC(hdcDest) == NULL ) return FALSE;
+
     return NtGdiPlgBlt(hdcDest,
                        (LPPOINT)ppt,
                        hdcSrc,
@@ -756,6 +800,8 @@ GdiAlphaBlend(
                   cySrc,
                   blendfn);
 
+    if ( GdiConvertAndCheckDC(hdcDst) == NULL ) return FALSE;
+
     return NtGdiAlphaBlend(hdcDst,
                            xDst,
                            yDst,
@@ -804,7 +850,8 @@ GdiTransparentBlt(
                   cySrc,
                   crTransparent);
 
-    /* FIXME some part need be done in user mode */
+    if ( GdiConvertAndCheckDC(hdcDst) == NULL ) return FALSE;
+
     return NtGdiTransparentBlt(hdcDst, xDst, yDst, cxDst, cyDst, hdcSrc, xSrc, ySrc, cxSrc, cySrc, crTransparent);
 }
 
@@ -823,6 +870,7 @@ GdiGradientFill(
 {
     HANDLE_METADC(BOOL, GradientFill, FALSE, hdc, pVertex, nVertex, pMesh, nCount, ulMode);
 
-    /* FIXME some part need be done in user mode */
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     return NtGdiGradientFill(hdc, pVertex, nVertex, pMesh, nCount, ulMode);
 }
diff --git a/win32ss/gdi/gdi32/objects/text.c b/win32ss/gdi/gdi32/objects/text.c
index 6d4936edfc0..e00e01e50fe 100644
--- a/win32ss/gdi/gdi32/objects/text.c
+++ b/win32ss/gdi/gdi32/objects/text.c
@@ -505,6 +505,8 @@ ExtTextOutW(
                   cwc,
                   lpDx);
 
+    if ( GdiConvertAndCheckDC(hdc) == NULL ) return FALSE;
+
     if (!(fuOptions & (ETO_GLYPH_INDEX | ETO_IGNORELANGUAGE)))
     {
         if (LoadLPK(LPK_ETO))