X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/566b7f7bbf7b48072d6f93e6bff90ac9cea78071..9eb5cd3b1fde80564d9c67afea154448a33836a1:/include/wx/msw/private.h

diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h
index 30aebc2836..c1b5e3e4cf 100644
--- a/include/wx/msw/private.h
+++ b/include/wx/msw/private.h
@@ -894,38 +894,28 @@ inline void *wxSetWindowUserData(HWND hwnd, void *data)
 
 #else // __WIN32__
 
-#ifdef __VISUALC__
-    // strangely enough, VC++ 7.1 gives warnings about 32 -> 64 bit conversions
-    // in the functions below, even in spite of the explicit casts
-    #pragma warning(disable:4311)
-    #pragma warning(disable:4312)
-#endif
-
-inline void *wxGetWindowProc(HWND hwnd)
+// note that the casts to LONG_PTR here are required even on 32-bit machines
+// for the 64-bit warning mode of later versions of MSVC (C4311/4312)
+inline WNDPROC wxGetWindowProc(HWND hwnd)
 {
-    return (void *)::GetWindowLong(hwnd, GWL_WNDPROC);
+    return (WNDPROC)(LONG_PTR)::GetWindowLong(hwnd, GWL_WNDPROC);
 }
 
 inline void *wxGetWindowUserData(HWND hwnd)
 {
-    return (void *)::GetWindowLong(hwnd, GWL_USERDATA);
+    return (void *)(LONG_PTR)::GetWindowLong(hwnd, GWL_USERDATA);
 }
 
 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 {
-    return (WNDPROC)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG)func);
+    return (WNDPROC)(LONG_PTR)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG_PTR)func);
 }
 
 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 {
-    return (void *)::SetWindowLong(hwnd, GWL_USERDATA, (LONG)data);
+    return (void *)(LONG_PTR)::SetWindowLong(hwnd, GWL_USERDATA, (LONG_PTR)data);
 }
 
-#ifdef __VISUALC__
-    #pragma warning(default:4311)
-    #pragma warning(default:4312)
-#endif
-
 #endif // __WIN64__/__WIN32__
 
 #endif // wxUSE_GUI