1 files changed, 3 insertions, 1 deletions
diff --git a/src/Fl_win32.cxx b/src/Fl_win32.cxx
index cad32aa1c..728e25557 100644
--- a/src/Fl_win32.cxx
+++ b/src/Fl_win32.cxx
@@ -1466,7 +1466,9 @@ static LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
           if ((GetAsyncKeyState(VK_LWIN) | GetAsyncKeyState(VK_RWIN)) & ~1)
             state |= FL_META;
           Fl::e_state = state;
-          return 0;
+          Fl::handle(FL_APP_ACTIVATE, nullptr);
+        } else {
+          Fl::handle(FL_APP_DEACTIVATE, nullptr);
         }
         break;