[LyX/master] Remove question marks from Windows dialogs

[Guillaume Munch]

commit cf26d53e037cf59b5816cdb2f5c7d835b83d480a
Author: Daniel Ramöller <d....@web.de>
Date:   Mon Oct 3 20:20:16 2016 +0200

    Remove question marks from Windows dialogs
---
 src/frontends/qt4/DialogView.h  |    5 ++++-
 src/frontends/qt4/GuiDialog.cpp |    5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/frontends/qt4/DialogView.h b/src/frontends/qt4/DialogView.h
index d3125c6..520a1e8 100644
--- a/src/frontends/qt4/DialogView.h
+++ b/src/frontends/qt4/DialogView.h
@@ -30,7 +30,10 @@ public:
        /// \param title is the window title used for decoration.
        DialogView(GuiView & lv, QString const & name, QString const & title)
                : QDialog(&lv), Dialog(lv, name, "LyX: " + title)
-       {}
+       {
+               // remove question marks from Windows dialogs
+               setWindowFlags(windowFlags() & 
~Qt::WindowContextHelpButtonHint);
+       }
 
        virtual QWidget * asQWidget() { return this; }
        virtual QWidget const * asQWidget() const { return this; }
diff --git a/src/frontends/qt4/GuiDialog.cpp b/src/frontends/qt4/GuiDialog.cpp
index 1797aee..8f8a872 100644
--- a/src/frontends/qt4/GuiDialog.cpp
+++ b/src/frontends/qt4/GuiDialog.cpp
@@ -27,7 +27,10 @@ namespace frontend {
 GuiDialog::GuiDialog(GuiView & lv, QString const & name, QString const & title)
        : QDialog(&lv), Dialog(lv, name, "LyX: " + title), updating_(false), 
          is_closing_(false)
-{}
+{
+       // remove question marks from Windows dialogs
+       setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+}
 
 
 void GuiDialog::closeEvent(QCloseEvent * ev)