QT: Fixed opening of print dialog from 3 widgets.

wb/lib/wb/qt/wb_wda_qt.cqt

@@ -78,7 +78,7 @@ void WdaQt::print(const char* title)
   pwr_tStatus sts;
 
   wow->CreateBrowPrintDialog(title, wdanav->brow->ctx,
-      flow_eOrientation_Portrait, 1.0, (void*)this, &sts);
+      flow_eOrientation_Portrait, 1.0, toplevel, &sts);
 }
 
 void WdaQt::change_value(int set_focus)

wb/lib/wb/qt/wb_wnav_qt.cqt

@@ -176,7 +176,7 @@ void WNavQt::print(const char* title)
   pwr_tStatus sts;
 
   wow->CreateBrowPrintDialog(
-      title, brow->ctx, flow_eOrientation_Portrait, 1.0, (void*)0, &sts);
+      title, brow->ctx, flow_eOrientation_Portrait, 1.0, NULL, &sts);
 }
 
 int WNavQt::get_selection(char* str, int len)

xtt/lib/xtt/qt/xtt_clog_qt.cqt

@@ -354,7 +354,7 @@ void CLogQt::print()
   }
 
   wow->CreateBrowPrintDialog(title, clognav->brow->ctx,
-      flow_eOrientation_Landscape, 1.0, parent_wid, &sts);
+      flow_eOrientation_Landscape, 1.0, toplevel, &sts);
   if (sts == WOW__PRINTDIALOGDISABLED) {
     wow->DisplayError("Disabled", "Print Dialog is disabled");
   }

xtt/lib/xtt/qt/xtt_xcolwind_qt.cqt

@@ -406,7 +406,7 @@ void XColWindQt::print()
   pwr_tStatus sts;
 
   wow->CreateBrowPrintDialog(title, xattnav->brow->ctx,
-      flow_eOrientation_Portrait, 1.0, (void*)this, &sts);
+      flow_eOrientation_Portrait, 1.0, toplevel, &sts);
 }
 
 void XColWindQtWidget::closeEvent(QCloseEvent* event)