X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8cb172b4f12fae80b06d5936108a1bc7f2521674..491b5be8305968871bc289453ed088a70c3de044:/src/msw/app.cpp

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 3adeae2cb4..f542a094a8 100644
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -115,7 +115,8 @@
     #define _WIN32_IE 0x0200
 #endif
 
-#if _WIN32_IE >= 0x0300
+#if _WIN32_IE >= 0x0300 \
+    && !( defined(__MINGW32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
     #include <shlwapi.h>
 #endif
 
@@ -1111,6 +1112,14 @@ void wxApp::OnIdle(wxIdleEvent& event)
     wxLog::FlushActive();
 #endif // wxUSE_LOG
 
+#if wxUSE_DC_CACHEING
+    // automated DC cache management: clear the cached DCs and bitmap
+    // if it's likely that the app has finished with them, that is, we
+    // get an idle event and we're not dragging anything.
+    if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
+        wxDC::ClearCache();
+#endif // wxUSE_DC_CACHEING
+
     // Send OnIdle events to all windows
     if ( SendIdleEvents() )
     {