mql-for-begginers/Include/Canvas/DX/DXInput.mqh

<EFBFBD><EFBFBD>//+------------------------------------------------------------------+
//|                                                      DXInput.mqh |
//|                             Copyright 2000-2025, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#include "DXHandle.mqh"
//+------------------------------------------------------------------+
//| Class CDXInput                                                   |
//+------------------------------------------------------------------+
class CDXInput : public CDXHandleShared
  {
public:
   //+------------------------------------------------------------------+
   //| Destructor                                                       |
   //+------------------------------------------------------------------+
   virtual          ~CDXInput(void)
     {
      Shutdown();
     }
   //+------------------------------------------------------------------+
   //| Create a new input buffer                                        |
   //+------------------------------------------------------------------+
   template<typename TInput>
   bool              Create(int context)
     {
      //--- shutdown input
      Shutdown();
      //--- save new context
      m_context=context;
      //--- create new input buffer
      m_handle=DXInputCreate(m_context,sizeof(TInput));
      return(m_handle!=INVALID_HANDLE);
     }
   //+------------------------------------------------------------------+
   //| Set input data                                                   |
   //+------------------------------------------------------------------+
   template<typename TInput>
   bool              InputSet(const TInput &input_data)
     {
      //--- check input handle
      if(m_handle==INVALID_HANDLE)
         return(false);
      //--- set input data
      return(DXInputSet(m_handle,input_data));
     }
   //+------------------------------------------------------------------+
   //| Shutdown                                                         |
   //+------------------------------------------------------------------+
   virtual void      Shutdown(void)
     {
      //--- relase handle
      if(m_handle!=INVALID_HANDLE)
         DXRelease(m_handle);
      m_handle=INVALID_HANDLE;
     }
  };
//+------------------------------------------------------------------+