restoring a minimized window on Windows CE didn't work

After restoring a minimized window we only saw the window decoration.
All content was missing. That's because we don't get a WM_SIZE message
for restoring the window. We must react on WM_ACTIVATE in this case.
This fixes the issue for Windows mobile too.

Task-number: 260702
Reviewed-by: thartman

2 files changed, 12 insertions, 5 deletions

diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index d7d079cc62..1babb695e2 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -2084,8 +2084,12 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                 // where it got it from; it would simply get a 0 value as the old focus widget.
 #ifdef Q_OS_WINCE
                 {
-                    if (widget->windowState() & Qt::WindowMinimized)
-                        widget->dataPtr()->window_state &= ~Qt::WindowMinimized;
+                    if (widget->windowState() & Qt::WindowMinimized) {
+                        if (widget->windowState() & Qt::WindowMaximized)
+                            widget->showMaximized();
+                        else
+                            widget->show();
+                    }
 #else
                 if (!(widget->windowState() & Qt::WindowMinimized)) {
 #endif
diff --git a/src/gui/kernel/qguifunctions_wince.cpp b/src/gui/kernel/qguifunctions_wince.cpp
index 6d6aec8470..4bfc14bb0f 100644
--- a/src/gui/kernel/qguifunctions_wince.cpp
+++ b/src/gui/kernel/qguifunctions_wince.cpp
@@ -314,8 +314,8 @@ void qt_wince_maximize(QWidget *widget)
     }
 }
 
-void qt_wince_minimize(HWND hwnd) {
-
+void qt_wince_minimize(HWND hwnd)
+{
     uint exstyle = GetWindowLongW(hwnd, GWL_EXSTYLE);
     uint style = GetWindowLongW(hwnd, GWL_STYLE);
     RECT rect;
@@ -324,10 +324,13 @@ void qt_wince_minimize(HWND hwnd) {
     AdjustWindowRectEx(&crect, style & ~WS_OVERLAPPED, FALSE, exstyle);
     MoveWindow(hwnd, rect.left - crect.left, rect.top - crect.top, 0, 0, true);
     SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong (hwnd, GWL_EXSTYLE) | WS_EX_NODRAG);
+#ifdef Q_OS_WINCE_WM
     ShowWindow(hwnd, SW_HIDE);
+#else
+    ShowWindow(hwnd, SW_MINIMIZE);
+#endif
 }
 
-
 void qt_wince_hide_taskbar(HWND hwnd) {
     if (ptrAygFullScreen)
         ptrAygFullScreen(hwnd, SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON | SHFS_HIDESTARTICON);