X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a7d174bf49e4081bd974d263384efb6852ae42ac..9905656a35761f368f6775f6f8d50ca393c63088:/include/wx/msw/private.h

diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h
index 46d14af631..c7aebfc709 100644
--- a/include/wx/msw/private.h
+++ b/include/wx/msw/private.h
@@ -325,7 +325,8 @@ struct WinStruct : public T
     WinStruct()
     {
         ::ZeroMemory(this, sizeof(T));
-        // NB: gcc-3.4 would give syntax error without "this->"
+
+        // explicit qualification is required here for this to be valid C++
         this->cbSize = sizeof(T);
     }
 };
@@ -347,6 +348,22 @@ private:
     DECLARE_NO_COPY_CLASS(ScreenHDC)
 };
 
+// the same as ScreenHDC but for window DCs
+class WindowHDC
+{
+public:
+    WindowHDC(HWND hwnd) { m_hdc = ::GetDC(m_hwnd = hwnd); }
+   ~WindowHDC() { ::ReleaseDC(m_hwnd, m_hdc); }
+
+    operator HDC() const { return m_hdc; }
+
+private:
+   HWND m_hwnd;
+   HDC m_hdc;
+
+   DECLARE_NO_COPY_CLASS(WindowHDC)
+};
+
 // the same as ScreenHDC but for memory DCs: creates the HDC compatible with
 // the given one (screen by default) in ctor and destroys it in dtor
 class MemoryHDC
@@ -492,7 +509,7 @@ WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
 extern HCURSOR wxGetCurrentBusyCursor();    // from msw/utils.cpp
 extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
 
-WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont *the_font);
+WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont& the_font);
 WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
 WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
 WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);