QT: navigator widgets now grab focus when realized.

wb/lib/wb/qt/wb_wtt_qt.cqt

@@ -65,6 +65,7 @@
 #include "wb_wpkg_qt.h"
 #include "wb_wtt_qt.h"
 
+#include <QApplication>
 #include <QCloseEvent>
 #include <QDialogButtonBox>
 #include <QInputDialog>
@@ -2292,6 +2293,11 @@ WttQt::WttQt(void* wt_parent_ctx, const char* wt_name, const char* iconname,
         pwr_mPrv_DevConfig | pwr_mPrv_DevPlc | pwr_mPrv_DevClass);
   }
 
+  // setFocus() doesn't work since QApplication has not entered its
+  // main loop yet. Instead, add an event to the event queue and let
+  // QApplication process it later when it enters the main loop.
+  QApplication::sendEvent(toplevel, new QFocusEvent(QEvent::FocusIn));
+
   *status = 1;
 }
 

xtt/lib/flow/qt/flow_scroll_widget_qt.cqt

@@ -291,4 +291,5 @@ void QtScrollWidgetFlow::realize()
           client_data, static_cast<flow_eCtxType>(ctxType));
     }
   }
+  setFocus();
 }

xtt/lib/glow/qt/glow_scroll_widget_qt.cqt

@@ -293,4 +293,5 @@ void QtScrollWidgetGlow::realize()
           client_data, static_cast<glow_eCtxType>(ctxType));
     }
   }
+  setFocus();
 }