Windows QPA: Increase API level to 0x600 (Windows Vista).

- Directly link against dwmapi which should be present on
  Windows Vista and remove duplicated header constants.
- Remove struct QWindowsShell32DL since all required functions
  are present on Windows Vista.
- Remove functions that are no longer needed from QWindowsUser32DLL
  with exception of the clipboard functions which are not present
  in the MinGW stub libraries until v5.

Task-number: QTBUG-51673
Change-Id: Ia4a8a3f1db0f0d02322317d547e61ae39f9008b5
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/plugins/platforms/windows/qwindowsclipboard.cpp b/src/plugins/platforms/windows/qwindowsclipboard.cpp
index d527e07308..21bc9d7377 100644
--- a/src/plugins/platforms/windows/qwindowsclipboard.cpp
+++ b/src/plugins/platforms/windows/qwindowsclipboard.cpp
@@ -237,8 +237,7 @@ void QWindowsClipboard::propagateClipboardMessage(UINT message, WPARAM wParam, L
         return;
     // In rare cases, a clipboard viewer can hang (application crashed,
     // suspended by a shell prompt 'Select' or debugger).
-    if (QWindowsContext::user32dll.isHungAppWindow
-        && QWindowsContext::user32dll.isHungAppWindow(m_nextClipboardViewer)) {
+    if (IsHungAppWindow(m_nextClipboardViewer)) {
         qWarning("Cowardly refusing to send clipboard message to hung application...");
         return;
     }