Index: win32ss/gdi/gdi32/objects/bitmap.c
===================================================================
--- win32ss/gdi/gdi32/objects/bitmap.c	(revision 56551)
+++ win32ss/gdi/gdi32/objects/bitmap.c	(working copy)
@@ -448,15 +448,32 @@
     UINT cjBmpScanSize = 0;
     HBITMAP hBmp;
     NTSTATUS Status = STATUS_SUCCESS;
-
-    if (!Header) return 0;
-
+//No Header, No life
+    if (!Header)
+	{
+		GdiSetLastError(ERROR_INVALID_PARAMETER);
+		return 0;
+	}
+//Let's check if the Header has an appropiate Size.
     if (DIB_GetBitmapInfo(Header, &width, &height, &planes, &bpp, &compr, &dibsize) == -1)
     {
         GdiSetLastError(ERROR_INVALID_PARAMETER);
         return NULL;
     }
-
+	//
+//Checking if the Compr is incompatible.
+	if(compr==BI_JPEG||compr==BI_PNG||compr==BI_BITFIELDS) return 0;
+//Just DIB_RGB_COLORS(0),DIB_PAL_COLORS(1) and "2" are valid.
+	if(ColorUse>DIB_PAL_COLORS+1)
+		{
+		GdiSetLastError(ERROR_INVALID_PARAMETER);
+		return 0;
+		}
+	
+//Negative width?No way.
+	if(width<0) return 0;
+//Negative height?Yes. Top-down DIBs have a negative height!So Abs it.
+	height= abs(height);
 // For Icm support.
 // GdiGetHandleUserData(hdc, GDI_OBJECT_TYPE_DC, (PVOID)&pDc_Attr))