diff options
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/kernel/qplatformwindow_qpa.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gui/kernel/qplatformwindow_qpa.cpp b/src/gui/kernel/qplatformwindow_qpa.cpp index b29112abef..fa1d3a33f8 100644 --- a/src/gui/kernel/qplatformwindow_qpa.cpp +++ b/src/gui/kernel/qplatformwindow_qpa.cpp @@ -166,7 +166,14 @@ Qt::WindowState QPlatformWindow::setWindowState(Qt::WindowState) /*! Reimplement in subclasses to return a handle to the native window */ -WId QPlatformWindow::winId() const { return WId(0); } +WId QPlatformWindow::winId() const +{ + // Return anything but 0. Returning 0 would cause havoc with QWidgets on + // very basic platform plugins that do not reimplement this function, + // because the top-level widget's internalWinId() would always be 0 which + // would mean top-levels are never treated as native. + return WId(1); +} /*! This function is called to enable native child window in QPA. It is common not to support this |