Use a "hidden" dialog, not frame, in sync wxExecute() hack in wxMSW.

Replace a "hidden" (not really, but shown far off screen) frame with a dialog
to avoid this frame appearing in the Alt+TAB list.

Closes #13251.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 98491b4bc21f174ac71f77d8ff89e3da2aa389fe..633722e0167055e31feb9507d8f48ee6b6afdabb 100644 (file)
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -172,12 +172,12 @@ void *wxGUIAppTraits::BeforeChildWaitLoop()
        focus/activation entirely when the child process terminates which would
        happen if we simply disabled everything using wxWindowDisabler. Indeed,
        remember that Windows will never activate a disabled window and when the
-       last childs window is closed and Windows looks for a window to activate
+       last child's window is closed and Windows looks for a window to activate
        all our windows are still disabled. There is no way to enable them in
-       time because we don't know when the childs windows are going to be
-       closed, so the solution we use here is to keep one special tiny frame
+       time because we don't know when the child's windows are going to be
+       closed, so the solution we use here is to keep one special tiny dialog
        enabled all the time. Then when the child terminates it will get
-       activated and when we close it below -- after reenabling all the other
+       activated and when we close it below -- after re-enabling all the other
        windows! -- the previously active window becomes activated again and
        everything is ok.
      */
@@ -186,16 +186,16 @@ void *wxGUIAppTraits::BeforeChildWaitLoop()
     // first disable all existing windows
     wxWindowDisabler *wd = new wxWindowDisabler;
 
-    // then create an "invisible" frame: it has minimal size, is positioned
-    // (hopefully) outside the screen and doesn't appear on the taskbar
-    wxWindow *winActive = new wxFrame
+    // then create an "invisible" dialog: it has minimal size, is positioned
+    // (hopefully) outside the screen and doesn't appear in the Alt-TAB list
+    // (unlike the frames, which is why we use a dialog here)
+    wxWindow *winActive = new wxDialog
                     (
                         wxTheApp->GetTopWindow(),
                         wxID_ANY,
                         wxEmptyString,
                         wxPoint(32600, 32600),
-                        wxSize(1, 1),
-                        wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR
+                        wxSize(1, 1)
                     );
     winActive->Show();
 
@@ -210,9 +210,9 @@ void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
 
     delete data->wd;
 
-    // finally delete the dummy frame and, as wd has been already destroyed and
-    // the other windows reenabled, the activation is going to return to the
-    // window which had had it before
+    // finally delete the dummy dialog and, as wd has been already destroyed
+    // and the other windows reenabled, the activation is going to return to
+    // the window which had had it before
     data->winActive->Destroy();
 
     // also delete the temporary data object itself