在MQL5中最小化/最大化图表窗口

问题描述

我发现了MT4的一个非常有用的“指标”,可让您通过双击或单击三次来最大化/最小化任何图表。

我一直试图将其移植到MT5失败。

我不确定Windows API在做什么。 我确实按照MSDN将类型更改为ulong / uint。 我也在使用CHART_WINDOW_HANDLE来获取hwnd。

鼠标单击计数器似乎可以工作,但是我从未设法使用以下代码最大化或最小化图表窗口。

任何帮助将不胜感激。

//+------------------------------------------------------------------+
//|                                                     ClickMax.mq5 |
//|                               Copyright © 2020  | 2016,MaryJane |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2020 | 2016,MaryJane"
#property link      "https://www.mql5.com"
#property version   "1.00"
#property indicator_chart_window
#property indicator_buffers 0
#property indicator_plots   0
#property strict

input uint clickDelay = 300;
input bool tripleClick = true;

#define SW_MAXIMIZE     3
#define SW_RESTORE      9

//+------------------------------------------------------------------------------------------------------------------------------------------------------+
// --- DLLs
#import "user32.dll"
   ulong GetParent(ulong hWnd);
   ulong GetWindow(ulong hWnd,uint uCmd);
   bool ShowWindow(ulong hWnd,int nCmdShow);
   bool IsZoomed(ulong hWnd);
#import

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
   if(!TerminalInfoInteger(TERMINAL_DLLS_ALLOWED))
     {

      Alert("You have to allow DLLs for ClickMax to work");
      return(INIT_FAILED);

     }
   else
      return(INIT_SUCCEEDED);
  }

//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                         |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
   
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,const int prev_calculated,const int begin,const double &price[])
  {
   return(0);
  }

//+------------------------------------------------------------------+
void OnChartEvent(const int id,const long &lparam,const double &dparam,const string &sparam)
  {

   static uint clicktime      = GetTickCount();
   static int  clickcount     = 0;
   bool        doubleclick    = false;
   if(_IsX64)
     {
      ulong hwnd = GetParent(CHART_WINDOW_HANDLE);
      //ulong hwnd = CHART_WINDOW_HANDLE;
      if(id == CHARTEVENT_CLICK)
        {
         uint test = GetTickCount() - clicktime;
         if(GetTickCount() - clicktime < clickDelay)
            clickcount++;
         else
            clickcount = 0;
         if((tripleClick && clickcount==2) ||
            (!tripleClick && clickcount==1))
            doubleclick = true;
         clicktime = GetTickCount();

         if(doubleclick)
           {
            if(!IsZoomed(hwnd))
               ShowWindow(hwnd,SW_MAXIMIZE);
            else
               ShowWindow(hwnd,SW_RESTORE);
            clickcount = 0;
           }
        }
     }
  }

解决方法

在注释中@dxiv暗示,CHART_WINDOW_HANDLE不是实际的HWND。 这是:(int)ChartGetInteger(0,CHART_WINDOW_HANDLE)

相关问答

错误1:Request method ‘DELETE‘ not supported 错误还原:...
错误1:启动docker镜像时报错:Error response from daemon:...
错误1:private field ‘xxx‘ is never assigned 按Alt...
报错如下,通过源不能下载,最后警告pip需升级版本 Requirem...