Implement NtGdiGetDCforBitmap. Q. Where to set hdc? ATM we return null.

svn path=/trunk/; revision=33026

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

@@ -23,6 +23,7 @@ typedef struct _BITMAPOBJ
   /* For device-independent bitmaps: */
   DIBSECTION *dib;
   HPALETTE hDIBPalette;
+  HDC hDC;
 } BITMAPOBJ, *PBITMAPOBJ;
 
 #define BITMAPOBJ_IS_APIBITMAP		0x1

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

@@ -87,7 +87,7 @@ typedef struct _DC
   DHPDEV      PDev;   // <- GDIDEVICE.hPDev DHPDEV for device.
   INT         DC_Type;
   INT         DC_Flags;
-  PVOID       pPDev;  // PGDIDEVICE
+  PVOID       pPDev;  // PGDIDEVICE aka PDEVOBJ
   PVOID       hSem;   // PERESOURCE
   FLONG       flGraphics;
   FLONG       flGraphics2;

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

@@ -78,6 +78,7 @@ IntGdiCreateBitmap(
    }
 
    bmp->flFlags = BITMAPOBJ_IS_APIBITMAP;
+   bmp->hDC = NULL; // Fixme
 
    if (NULL != pBits)
    {
@@ -739,4 +740,21 @@ BITMAP_GetObject(BITMAPOBJ * bmp, INT Count, LPVOID buffer)
 		return Count;
 	}
 }
+
+/*
+ * @implemented
+ */
+HDC
+APIENTRY
+NtGdiGetDCforBitmap(
+    IN HBITMAP hsurf)
+{
+  HDC hDC = NULL;
+  PBITMAPOBJ bmp = BITMAPOBJ_LockBitmap( hsurf );
+  hDC = bmp->hDC;
+  BITMAPOBJ_UnlockBitmap( bmp );
+  return hDC;
+}
+
+
 /* EOF */

reactos/subsystems/win32/win32k/stubs/stubs.c

@@ -2050,19 +2050,6 @@ NtGdiGetColorSpaceforBitmap(
     return 0;
 }
 
- /*
- * @unimplemented
- */
-HDC
-APIENTRY
-NtGdiGetDCforBitmap(
-    IN HBITMAP hsurf)
-{
-    UNIMPLEMENTED;
-    return NULL;
-}
-
-
  /*
  * @unimplemented
  */