diff --git a/src/msw/dib.cpp b/src/msw/dib.cpp
index 5cd30f4f41..92db7b427d 100644
--- a/src/msw/dib.cpp
+++ b/src/msw/dib.cpp
@@ -299,11 +299,11 @@ HBITMAP wxDIB::ConvertToBitmap(const BITMAPINFO *pbmi, HDC hdc, void *bits)
 
         bits = (char *)pbmih + sizeof(*pbmih) + numColors*sizeof(RGBQUAD);
     }
-    HDC tmphdc = hdc;
-    if (!hdc) tmphdc = ScreenHDC();
+
     HBITMAP hbmp = ::CreateDIBitmap
                      (
-                        tmphdc,             // create bitmap compatible with this DC
+                        hdc ? hdc           // create bitmap compatible
+                            : (HDC) ScreenHDC(),  //  with this DC
                         pbmih,              // used to get size &c
                         CBM_INIT,           // initialize bitmap bits too
                         bits,               // ... using this data