Teechart在VC++中使用的碎碎念

今天再看官网推荐的Teechart的使用方式，感觉他们还是推荐使用VC++6.0的导出头文件格式，来引入所有的类，并操作teechart控件。

All the files necessary can be found under the New VC classes folder below the utilities folder; these files should be copied to your project folder (using Windows Explorer) and then should be added in to the project (in Solution Explorer -> right click over "Source Files" & "Header Files" folders -> Add Existing Item...).

长期使用teechart，2010年之前在Delphi使用，这几年使用的是VC++。有段时间自绘了曲线显示窗口，但是要处理的动作和效果实在是太多了，虽然可以自定义的东西很多，但是工作量实在是太大，现在已经是大龄程序员了，没有那么多的时间和精力去自己画了，只好重用teechart。

VS使用上的困惑:有几个软件用的是VS2005及以上版本开发的，但是因为在这些编译器中teechart导出的函数接口有改动，导致编程效率底下，附上VS2005--VS2015的类库导入步骤：

添加相关类MFC Class From Typelib--->add class from registry---->available type libraries选中teechart pro activex control v8，后面会显示具体的注册路径。把接口interfaces IAxes I...之类的全部选中，导入到程序中，就可以使用了。

下面对比VS和VC++6.0的导出文件:

VS版本的导出文件：

// Machine generated IDispatch wrapper class(es) created with Add Class from Typelib Wizard

#import "C:\\Windows\\SysWow64\\TeeChart8.ocx" no_namespace
// CAxes wrapper class

class CAxes : public COleDispatchDriver
{
public:
    CAxes(){} // Calls COleDispatchDriver default constructor
    CAxes(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
    CAxes(const CAxes& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}

    // Attributes
public:

    // Operations
public:

    // IAxes methods
public:
    LPDISPATCH get_Left()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    LPDISPATCH get_Right()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    LPDISPATCH get_Top()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    LPDISPATCH get_Bottom()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    BOOL get_Visible()
    {
        BOOL result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_BOOL, (void*)&result, NULL);
        return result;
    }
    void put_Visible(BOOL newValue)
    {
        static BYTE parms[] = VTS_BOOL ;
        InvokeHelper(, DISPATCH_PROPERTYPUT, VT_EMPTY, NULL, parms, newValue);
    }
    LPDISPATCH get_Depth()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    BOOL get_DrawAxesBeforeSeries()
    {
        BOOL result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_BOOL, (void*)&result, NULL);
        return result;
    }
    void put_DrawAxesBeforeSeries(BOOL newValue)
    {
        static BYTE parms[] = VTS_BOOL ;
        InvokeHelper(, DISPATCH_PROPERTYPUT, VT_EMPTY, NULL, parms, newValue);
    }
    long AddCustom(BOOL IsHorizontal)
    {
        long result;
        static BYTE parms[] = VTS_BOOL ;
        InvokeHelper(, DISPATCH_METHOD, VT_I4, (void*)&result, parms, IsHorizontal);
        return result;
    }
    LPDISPATCH get_Custom(long CustomAxisIndex)
    {
        LPDISPATCH result;
        static BYTE parms[] = VTS_I4 ;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, parms, CustomAxisIndex);
        return result;
    }
    long get_CustomCount()
    {
        long result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_I4, (void*)&result, NULL);
        return result;
    }
    void RemoveCustom(long CustomAxisIndex)
    {
        static BYTE parms[] = VTS_I4 ;
        InvokeHelper(, DISPATCH_METHOD, VT_EMPTY, NULL, parms, CustomAxisIndex);
    }
    void RemoveAllCustom()
    {
        InvokeHelper(, DISPATCH_METHOD, VT_EMPTY, NULL, NULL);
    }
    LPDISPATCH get_DepthTop()
    {
        LPDISPATCH result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result, NULL);
        return result;
    }
    BOOL get_FastCalc()
    {
        BOOL result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_BOOL, (void*)&result, NULL);
        return result;
    }
    void put_FastCalc(BOOL newValue)
    {
        static BYTE parms[] = VTS_BOOL ;
        InvokeHelper(, DISPATCH_PROPERTYPUT, VT_EMPTY, NULL, parms, newValue);
    }
    void SetIsometric(long aVertical, long aHorizontal)
    {
        static BYTE parms[] = VTS_I4 VTS_I4 ;
        InvokeHelper(, DISPATCH_METHOD, VT_EMPTY, NULL, parms, aVertical, aHorizontal);
    }
    void Hide()
    {
        InvokeHelper(, DISPATCH_METHOD, VT_EMPTY, NULL, NULL);
    }
    BOOL get_Behind()
    {
        BOOL result;
        InvokeHelper(, DISPATCH_PROPERTYGET, VT_BOOL, (void*)&result, NULL);
        return result;
    }
    void put_Behind(BOOL newValue)
    {
        static BYTE parms[] = VTS_BOOL ;
        InvokeHelper(, DISPATCH_PROPERTYPUT, VT_EMPTY, NULL, parms, newValue);
    }

    // IAxes properties
public:

};

VC++6.0的的导出文件如下：

#if !defined(AFX_AXES_H__6F4A532C_9E89_4968_9E14_E83C63437874__INCLUDED_)
#define AFX_AXES_H__6F4A532C_9E89_4968_9E14_E83C63437874__INCLUDED_

#if _MSC_VER > 
#pragma once
#endif // _MSC_VER > 1000
// Machine generated IDispatch wrapper class(es) created by Microsoft Visual C++

// NOTE: Do not modify the contents of this file.  If this class is regenerated by
//  Microsoft Visual C++, your modifications will be overwritten.

// Dispatch interfaces referenced by this interface
class CAxis;

/
// CAxes wrapper class

class CAxes : public COleDispatchDriver
{
public:
    CAxes() {}        // Calls COleDispatchDriver default constructor
    CAxes(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
    CAxes(const CAxes& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}

// Attributes
public:

// Operations
public:
    CAxis GetLeft();
    CAxis GetRight();
    CAxis GetTop();
    CAxis GetBottom();
    BOOL GetVisible();
    void SetVisible(BOOL bNewValue);
    CAxis GetDepth();
    BOOL GetDrawAxesBeforeSeries();
    void SetDrawAxesBeforeSeries(BOOL bNewValue);
    long AddCustom(BOOL IsHorizontal);
    CAxis GetCustom(long CustomAxisIndex);
    long GetCustomCount();
    void RemoveCustom(long CustomAxisIndex);
    void RemoveAllCustom();
    CAxis GetDepthTop();
    BOOL GetFastCalc();
    void SetFastCalc(BOOL bNewValue);
    void SetIsometric(long aVertical, long aHorizontal);
    void Hide();
    BOOL GetBehind();
    void SetBehind(BOOL bNewValue);
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_AXES_H__6F4A532C_9E89_4968_9E14_E83C63437874__INCLUDED_)

几大变化：

VC++ 6.0	VS2005及更高版本
头文件和源文件	`axes.h axes.cpp`	axes.h
函数名称1	`GetLeft()`	get_Left()
函数返回值1	`CAxis`	LPDISPATCH
函数名称2	`SetBehind(BOOL bNewValue)`	put_Behind(BOOL newValue)
函数返回值2	`void`	void

语句的不同

VC++ 6.0	VS2005及更高版本
语句1	`mChart.GetAxis().GetLeft().SetVisible(FALSE);	((CAxis)((CAxes)mChart.get_Axis()).get_Left()).put_Visible(FALSE);`
语句2	`CAxes ChartAxis = mChart.GetAxis(); CAxis asLeft = ChartAxis.GetLeft(); asLeft.SetVisible(FALSE);`	CAxes ChartAxis = mChart.get_Axis(); CAxis asLeft = ChartAxis.get_Left(); asLeft.put_Visible(FALSE);

使用高版本的VS导出的头文件使用过程比较繁琐，尤其是返回值，需要查询具体的类型。

官网推荐还是使用VC++6.0的版本，并且附上了一个文件夹，可以直接使用

New VC Classes

具体的使用过程还是查询

Tutorial 15 - MS VC++ Applications

官方文档中几个有用的例子：

标题的更改

#include "Titles.h"
#include "Strings.h"

COleVariant var1(CString ("ACME Monthly Sales"));
COleVariant var2(CString ("Year: 2014"));
CTitles hd = m_Chart.GetHeader();
hd.GetText().Clear();
hd.GetText().Add(*(LPCVARIANT)var1);
hd.GetText().Add(*(LPCVARIANT)var2);

//if items (header lines) already in list (+ alternative COleVariant declare syntax)

m_Chart1.GetHeader().GetText().SetItem(, COleVariant("ACME Monthly Sales"));
m_Chart1.GetHeader().GetText().SetItem(, COleVariant("Year: 2014"));

Canvas绘图

#include "Canvas.h"

m_Chart1.GetCanvas().MoveTo(,);
m_Chart1.GetCanvas().LineTo(,);
m_Chart1.GetCanvas().TextOut(,,"My output text");

坐标轴label的文字修改

CString strLabel(*LabelText);
strLabel += " Period";
strLabel.SetSysString(LabelText);

坐标轴label 的数值更改

{
  if (Axis == atLeft)
  {
    *MoreLabels = true;

    //Only label if following cases are true   
    switch( LabelIndex ) 
    {    
      case : *LabelValue = ; break;
      case : *LabelValue = ; break;
      case : *LabelValue = ; break;
      default: *MoreLabels=false;
    }
  }
}

界面绘图：

CString text;
  int value1,value2,total;

  value1 = ;
  value2 = ;

  total = value1+value2;

  text.Format(_T("Serie : %d"),total);

  m_Chart1.GetCanvas().TextOut(,,text));

常量定义部分：官方给出一个头文件

TeeChartDefines.h

，为什么不能通过添加类的方式引入，原因是MS VC++ doesn't natively support import of TeeChart constants. You need to create you own defines file and #include it in your project. We offer a pre built defines file in the Examples\Visual C++ folder. Including the file in your project will allow you to use constants by name as matching the Enum declarations in the Online help file.

附上几个常见问题的解答：

MicroSoft Visual C++ specific

How to use TeeChart constants in MS VC++.
Where are descriptions of functions such as GetSeries(), Add() and other similar functions?
Changes made at design time with the Chart Editor do not always save.
How do I add/change text of the Chart Header and Footer at runtime in MS VC++ ?
Can I obtain any additional examples with use of TeeChart Pro for VC++?

Teechart在VC++中使用的碎碎念

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