Conditional ON_Chart event function

[Seyedmasoud Hashemi]

Hi everyone

i wonder it's a way to make an ON_Chart function be enable or disable in Capp dialog class like this example i want when i press no button the yes button doesn't work at all (it's working now) :

//+------------------------------------------------------------------+
//|                                                  PanelDialog.mqh |
//|                   Copyright 2009-2015, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#include <Controls\Dialog.mqh>
#include <Controls\Button.mqh>
#include <Controls\Edit.mqh>
#include <Controls\ListView.mqh>
#include <Controls\ComboBox.mqh>
#include <Controls\SpinEdit.mqh>
#include <Controls\RadioGroup.mqh>
#include <Controls\CheckGroup.mqh>
#include <Controls\Label.mqh>
#include <Controls\Scrolls.mqh>
//+------------------------------------------------------------------+
//| defines                                                          |
//+------------------------------------------------------------------+
//--- indents and gaps
#define INDENT_LEFT_ScrollQ                         (11)      // indent from left (with allowance for border width)(for Scroll Bar Only)
#define INDENT_LEFTQ                         (11)      // indent from left (with allowance for border width)
#define INDENT_TOPQ                          (11)      // indent from top (with allowance for border width)
#define INDENT_RIGHTQ                        (11)      // indent from right (with allowance for border width)
#define INDENT_BOTTOMQ                       (11)      // indent from bottom (with allowance for border width)
#define CONTROLS_GAP_XQ                      (80)      // gap by X coordinate
#define CONTROLS_GAP_YQ                      (40)      // gap by Y coordinate
//--- for buttons
#define BUTTON_WIDTHQ                        (60)     // size by X coordinate
#define BUTTON_HEIGHTQ                       (20)      // size by Y coordinate
//--- for the indication area

#define EDIT_HEIGHTQ                         (20)      // size by Y coordinate
#define GROUP_WIDTHQ                         (150)     // size by X coordinate
#define LIST_HEIGHTQ                         (379)     // size by Y coordinate
#define RADIO_HEIGHTQ                        (56)      // size by Y coordinate
#define CHECK_HEIGHTQ                        (93)      // size by Y coordinate
//+------------------------------------------------------------------+
//| Class CPanelDialog                                               |
//| Usage: main dialog of the SimplePanel application                |
//+------------------------------------------------------------------+
class CPanelDialogQ : public CAppDialog
  {
private:

   CLabel            m_Label_Q_text;


   CButton           m_button_Yes;
   CButton           m_button_No;




   //****************************************************


public:
                     CPanelDialogQ(void);
                    ~CPanelDialogQ(void);
   //--- create
   virtual bool      CreateQ(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2,string QText);
   //--- chart event handler
   virtual bool      OnEvent(const int id,const long &lparam,const double &dparam,const string &sparam);

protected:

   //--- create dependent controls

   bool              CreateLabel_Q_text(string QT);

   bool              CreateButton_Yes(void);
   bool              CreateButton_No(void);


   void              OnClick_button_Yes(void);
   void              OnClick_button_No(void);


  };
//+------------------------------------------------------------------+
//| Event Handling                                                   |
//+------------------------------------------------------------------+
EVENT_MAP_BEGIN(CPanelDialogQ)

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
ON_EVENT(ON_CLICK,m_button_Yes,OnClick_button_Yes)
ON_EVENT(ON_CLICK,m_button_No,OnClick_button_No)


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
EVENT_MAP_END(CAppDialog)
//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CPanelDialogQ::CPanelDialogQ(void)
  {
  }
//+------------------------------------------------------------------+
//| Destructor                                                       |
//+------------------------------------------------------------------+
CPanelDialogQ::~CPanelDialogQ(void)
  {
  }
//+------------------------------------------------------------------+
//| Create                                                           |
//+------------------------------------------------------------------+
bool CPanelDialogQ::CreateQ(const long chart,const string name,const int subwin,const int x1,const int y1,const int x2,const int y2,string QText)
  {
   if(!CAppDialog::Create(chart,name,subwin,x1,y1,x2,y2))
      return(false);
//--- create dependent controls

   if(!CreateLabel_Q_text(QText))
      return(false);
   if(!CreateButton_Yes())
      return(false);
   if(!CreateButton_No())
      return(false);

//--- succeed
   return(true);
  }


//+------------------------------------------------------------------+

//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
bool CPanelDialogQ::CreateLabel_Q_text(string QT)
  {
//--- coordinates
   int x1=INDENT_LEFTQ;
   int y1=INDENT_TOPQ;
   int x2=ClientAreaWidth()-(INDENT_RIGHTQ+BUTTON_WIDTHQ+CONTROLS_GAP_XQ);
   int y2=y1+EDIT_HEIGHTQ;

//--- create
   if(!m_Label_Q_text.Create(m_chart_id,"QT",m_subwin,x1,y1,x2,y2))
      return(false);
   if(!m_Label_Q_text.Text(QT))
      return(false);
   if(!m_Label_Q_text.FontSize(12))
      return(false);
   if(!m_Label_Q_text.Color(clrBlack))
      return(false);
   if(!m_Label_Q_text.ColorBorder(clrBlack))
      return(false);
   if(!m_Label_Q_text.ColorBackground(clrBlack))
      return(false);
// if(!m_edit.ReadOnly(true))
//    return(false);
   if(!Add(m_Label_Q_text))
      return(false);

   m_Label_Q_text.Alignment(WND_ALIGN_WIDTH,INDENT_LEFTQ,0,INDENT_RIGHTQ+BUTTON_WIDTHQ+CONTROLS_GAP_XQ,0);
//--- succeed
   return(true);
  }
//+------------------------------------------------------------------+


//+------------------------------------------------------------------+
bool CPanelDialogQ::CreateButton_Yes(void)
  {
//--- coordinates
   int x1=INDENT_LEFTQ;
   int y1=INDENT_TOPQ+CONTROLS_GAP_YQ;
   int x2=x1+BUTTON_WIDTHQ;
   int y2=y1+BUTTON_HEIGHTQ;
//--- create
   if(!m_button_Yes.Create(m_chart_id,m_name+"Yes",m_subwin,x1,y1,x2,y2))
      return(false);
   if(!m_button_Yes.Text("Yes"))
      return(false);
   if(!Add(m_button_Yes))
      return(false);
   m_button_Yes.Deactivate();
   m_button_Yes.Alignment(WND_ALIGN_RIGHT,0,0,INDENT_RIGHTQ+CONTROLS_GAP_XQ*2,0);
//--- succeed
   return(true);
  }





//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
bool CPanelDialogQ::CreateButton_No(void)
  {
//--- coordinates
   int x1=INDENT_LEFTQ+CONTROLS_GAP_XQ;
   int y1=INDENT_TOPQ+CONTROLS_GAP_YQ;
   int x2=x1+BUTTON_WIDTHQ;
   int y2=y1+BUTTON_HEIGHTQ;
//--- create
   if(!m_button_No.Create(m_chart_id,m_name+"NO",m_subwin,x1,y1,x2,y2))
      return(false);
   if(!m_button_No.Text("NO"))
      return(false);
   if(!Add(m_button_No))
      return(false);
   m_button_No.Alignment(WND_ALIGN_RIGHT,0,0,INDENT_RIGHTQ+CONTROLS_GAP_XQ*1,0);
//--- succeed
   return(true);
  }

//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
void CPanelDialogQ::OnClick_button_Yes(void)
  {

   Print("OnClick_button_Yes", "Last Error: ",GetLastError());
   m_button_Yes.Disable();
   m_button_Yes.Deactivate();
      bool  Dis=m_button_Yes.IsEnabled();
   Print("Enable Status: ",Dis);
   bool Dea=m_button_Yes.IsActive();
   Print("Activate Staus: ",Dea);

  }
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
void CPanelDialogQ::OnClick_button_No(void)
  {

   Print("OnClick_button_No", "Last Error: ",GetLastError());

   m_button_Yes.Hide();
   m_button_Yes.Disable();
   m_button_Yes.Deactivate();
   bool  Dis=m_button_Yes.IsEnabled();
   Print("Enable Status: ",Dis);
   bool Dea=m_button_Yes.IsActive();
   Print("Activate Staus: ",Dea);




  }
//+------------------------------------------------------------------+