added an error message if a bitmap can't be addedto the image list

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1386 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/msw/imaglist.cpp b/src/msw/imaglist.cpp
index 1ad87888ba49c85dd0ac717ba7f45d1dc4822208..4d969b52aba987b89fa8cbe906109c0ec37c80d4 100644 (file)
--- a/src/msw/imaglist.cpp
+++ b/src/msw/imaglist.cpp
@@ -86,7 +86,14 @@ int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
        HBITMAP hBitmap2 = 0;
        if ( mask.Ok() )
            hBitmap2 = (HBITMAP) mask.GetHBITMAP();
-       return ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmap2);
+
+    int index = ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmap2);
+       if ( index == -1 )
+    {
+        wxLogError(_("Couldn't add an image to the image list."));
+    }
+
+    return index;
 }
 
 // Adds a bitmap, using the specified colour to create the mask bitmap