Finished review of the first 1,000 lines of grid.h interface header.

[wxWidgets.git] / src / msw / toplevel.cpp

diff --git a/src/msw/toplevel.cpp b/src/msw/toplevel.cpp
index faa55fe617097f998df466e29aaf6cf5bad7e264..c0657b18bfd603af4e330b280b8cafff8af0985b 100644 (file)
--- a/src/msw/toplevel.cpp
+++ b/src/msw/toplevel.cpp
@@ -972,7 +972,7 @@ wxString wxTopLevelWindowMSW::GetTitle() const
     return GetLabel();
 }
 
     return GetLabel();
 }
 

-void wxTopLevelWindowMSW::DoSelectAndSetIcon(const wxIconBundle& icons,
+bool wxTopLevelWindowMSW::DoSelectAndSetIcon(const wxIconBundle& icons,

                                              int smX,
                                              int smY,
                                              int i)
                                              int smX,
                                              int smY,
                                              int i)


@@ -983,15 +983,29 @@ void wxTopLevelWindowMSW::DoSelectAndSetIcon(const wxIconBundle& icons,
     if ( icon.Ok() )
     {
         ::SendMessage(GetHwnd(), WM_SETICON, i, (LPARAM)GetHiconOf(icon));
     if ( icon.Ok() )
     {
         ::SendMessage(GetHwnd(), WM_SETICON, i, (LPARAM)GetHiconOf(icon));

+        return true;

     }
     }

+
+    return false;

 }
 
 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 {
     wxTopLevelWindowBase::SetIcons(icons);
 
 }
 
 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 {
     wxTopLevelWindowBase::SetIcons(icons);
 

-    DoSelectAndSetIcon(icons, SM_CXSMICON, SM_CYSMICON, ICON_SMALL);
-    DoSelectAndSetIcon(icons, SM_CXICON, SM_CYICON, ICON_BIG);
+    if ( icons.IsEmpty() )
+    {
+        // FIXME: SetIcons(wxNullIconBundle) should unset existing icons,
+        //        but we currently don't do that
+        wxASSERT_MSG( m_icons.IsEmpty(), "unsetting icons doesn't work" );
+        return;
+    }
+
+    if ( !DoSelectAndSetIcon(icons, SM_CXSMICON, SM_CYSMICON, ICON_SMALL) &&
+            !DoSelectAndSetIcon(icons, SM_CXICON, SM_CYICON, ICON_BIG) )
+    {
+        wxFAIL_MSG( "icon bundle doesn't contain any suitable icon" );
+    }

 }
 
 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 }
 
 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)


@@ -1131,15 +1145,23 @@ bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
 {
 #if wxUSE_DYNLIB_CLASS
     typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
 {
 #if wxUSE_DYNLIB_CLASS
     typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);

-    static PSETLAYEREDWINDOWATTR pSetLayeredWindowAttributes = NULL;
+    static PSETLAYEREDWINDOWATTR
+        pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)-1;

 
 

-    if ( pSetLayeredWindowAttributes == NULL )
+    if ( pSetLayeredWindowAttributes == (PSETLAYEREDWINDOWATTR)-1 )

     {
         wxDynamicLibrary dllUser32(_T("user32.dll"));
     {
         wxDynamicLibrary dllUser32(_T("user32.dll"));

+
+        // use RawGetSymbol() and not GetSymbol() to avoid error messages under
+        // Windows 95: there is nothing the user can do about this anyhow

         pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
         pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)

-            dllUser32.GetSymbol(wxT("SetLayeredWindowAttributes"));
+            dllUser32.RawGetSymbol(wxT("SetLayeredWindowAttributes"));
+
+        // it's ok to destroy dllUser32 here, we link statically to user32.dll
+        // anyhow so it won't be unloaded

     }
     }

-    if ( pSetLayeredWindowAttributes == NULL )
+
+    if ( !pSetLayeredWindowAttributes )

         return false;
 #endif // wxUSE_DYNLIB_CLASS
 
         return false;
 #endif // wxUSE_DYNLIB_CLASS