X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3c1a88d8b8518eda184be388723f46cfd54c3ac6..0bd55cfa2c5c18d4e9241cf90195e30d0be5d905:/src/msw/bitmap.cpp

diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 3cf541d3c7..f0e07174d5 100644
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -582,15 +582,15 @@ wxMask::~wxMask()
 // Create a mask from a mono bitmap (copies the bitmap).
 bool wxMask::Create(const wxBitmap& bitmap)
 {
+    wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, FALSE,
+                 _T("can't create mask from invalid or not monochrome bitmap") );
+
     if ( m_maskBitmap )
     {
         ::DeleteObject((HBITMAP) m_maskBitmap);
         m_maskBitmap = 0;
     }
-    if (!bitmap.Ok() || bitmap.GetDepth() != 1)
-    {
-        return FALSE;
-    }
+
     m_maskBitmap = (WXHBITMAP) CreateBitmap(
                                             bitmap.GetWidth(),
                                             bitmap.GetHeight(),