i_local_font_size - assign settings to a window or group
this class copies the settings of an existing i_basic_font_size
window to it's own window.
It can be used like that:
m_Sub_Dlg.pWindow->show();
// Show new dialog
m_Sub_Dlg.This_Window(m_Sub_Dlg.pWindow); //
Initialise interface
m_Sub_Dlg.Update_Font_Size(pWindow);
// Get local settings
[ index ] [ i_basic_font_size ] [ i_font_size ]