(CAD二次开发学习笔记五在ObjectARX中使用MFC.docxVIP

CAD二次开发学习笔记五(在ObjectARX中使用MFC)要实现的功能是：执行ArxModal命令，弹出如图所示对话框，选择点，则得到点坐标，选择角度则得到角度值。步骤一：新建基于MFC的ObjectArx项目，参考：/greatverve/archive/2010/05/31/ObjectARX-HelloWorld.html/greatverve/archive/2010/05/31/ObjectARX-HelloWorld.html打开资源视图添加一个对话框ID修改为IDD_ARX_MODAL(右击资源视图中的对话框打开属性面板，可以修改ID)设计如图界面，ID如下：IDC_BUTTON_POINTIDC_BUTTON_ANGLEIDC_EDIT_XPTIDC_EDIT_YPTIDC_EDIT_ZPTIDC_EDIT_ANGLE选择两个Button把Owner Draw设置为True完成界面。步骤二：打开类视图，右击项目-添加类(这里不是右击对话框添加类)这张图有点小错误，这里Dialog ID:IDD_ARX_MODAL Class name:CArxDialog在类视图中右击CArxDialog类添加变量这样会在头文件中生成源文件中生成可以直接修改这两处代码添加其他变量。private:CAcUiPickButton m_btnAngle;CAcUiPickButton m_btnPoint;CAcUiNumericEdit m_editXpt;CAcUiNumericEdit m_editYpt;CAcUiNumericEdit m_editZpt;CAcUiAngleEdit m_editAngle;void CArxDlg::DoDataExchange (CDataExchange *pDX) {CAcUiDialog::DoDataExchange (pDX) ;DDX_Control(pDX, IDC_BUTTON_POINT, m_btnPoint);DDX_Control(pDX, IDC_BUTTON_ANGLE, m_btnAngle);DDX_Control(pDX, IDC_EDIT_XPT, m_editXpt);DDX_Control(pDX, IDC_EDIT_YPT, m_editYpt);DDX_Control(pDX, IDC_EDIT_ZPT, m_editZpt);DDX_Control(pDX, IDC_EDIT_ANGLE, m_editAngle);}步骤三：为CArxDialog添加InitDialog消息响应。方法是打开类视图，右击-属性再添加OnClose()响应函数在头文件中添加几个变量public:CString m_strAngle;CString m_strZPt;CString m_strYPt;CString m_strXPt;在头文件中定义两函数void DisplayPoint();void DisplayAngle();分别为两个按钮添加单击事件，为四个编辑框添加失去焦点事件。步骤四：打开acrxEntryPoint.cpp添加#include “ArxDialog.h”运行结果如图附源码:acrxEntryPoint.cpp// (C) Copyright 2002-2005 by Autodesk, Inc. //// Permission to use, copy, modify, and distribute this software in// object code form for any purpose and without fee is hereby granted, // provided that the above copyright notice appears in all copies and // that both that copyright notice and the limited warranty and// restricted rights notice below appear in all supporting // documentation.//// AUTODESK PROVIDES THIS PROGRAM AS IS AND WITH ALL FAULTS. // AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC. // DOES NOT WARRANT THAT THE OPERATION