C++ 成员变量-未定义且不可访问
我无法从成员函数C++ 成员变量-未定义且不可访问,c++,mfc,C++,Mfc,我无法从成员函数CAboutDlg::OnLButtonDown访问私有成员变量。 当我试图给ellipseColor分配一个新值时,我得到了未声明的标识符错误。当我试图通过它的类CCSIT861a3VasilkovskiyDlg::ellipseColor来访问它时,编译器说它是不可访问的 我遗漏了什么,如何访问/修改这些变量 头文件: #pragma once // CCSIT861a3VasilkovskiyDlg dialog class CCSIT861a3Vasilkovskiy
CAboutDlg::OnLButtonDown
访问私有成员变量。
当我试图给ellipseColor分配一个新值时,我得到了未声明的标识符
错误。当我试图通过它的类CCSIT861a3VasilkovskiyDlg::ellipseColor来访问它时,编译器说它是不可访问的
我遗漏了什么,如何访问/修改这些变量
头文件:
#pragma once
// CCSIT861a3VasilkovskiyDlg dialog
class CCSIT861a3VasilkovskiyDlg : public CDialogEx
{
// Construction
public:
CCSIT861a3VasilkovskiyDlg(CWnd* pParent = NULL); // standard constructor
// Dialog Data
enum { IDD = IDD_CSIT861A3VASILKOVSKIY_DIALOG };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
HICON m_hIcon;
// Generated message map functions
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
private:
COLORREF ellipseColor;
COLORREF centerRectColor;
COLORREF rightRectColor;
CRect centerRect;
CRect rightRect;
CSize ellipse;
bool mouseCaptured;
};
实施文件:
#include "stdafx.h"
#include "CSIT861a3 Vasilkovskiy.h"
#include "CSIT861a3 VasilkovskiyDlg.h"
#include "afxdialogex.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialogEx
{
public:
CAboutDlg();
// Dialog Data
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
DECLARE_MESSAGE_MAP()
public:
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
};
CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
END_MESSAGE_MAP()
// CCSIT861a3VasilkovskiyDlg dialog
CCSIT861a3VasilkovskiyDlg::CCSIT861a3VasilkovskiyDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CCSIT861a3VasilkovskiyDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
ellipseColor = RGB(255, 0, 0);
centerRectColor = RGB(0, 0, 0);
rightRectColor = RGB(255, 0, 0);
centerRect.left = 40;
centerRect.top = 20;
centerRect.right = 55;
centerRect.bottom = 80;
rightRect.left = 75;
rightRect.top = 35;
rightRect.right = 90;
rightRect.bottom = 50;
ellipse.cx = 10;
ellipse.cy = 10;
mouseCaptured = false;
}
void CCSIT861a3VasilkovskiyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CCSIT861a3VasilkovskiyDlg, CDialogEx)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
END_MESSAGE_MAP()
// CCSIT861a3VasilkovskiyDlg message handlers
BOOL CCSIT861a3VasilkovskiyDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
BOOL bNameValid;
CString strAboutMenu;
bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
ASSERT(bNameValid);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CCSIT861a3VasilkovskiyDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialogEx::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CCSIT861a3VasilkovskiyDlg::OnPaint()
{
//Create pen and pointer to the old pen
CPen blackPen;
blackPen.CreatePen(PS_SOLID, 1, RGB (0, 0, 0));
//Create a bursh
CBrush blackBrush(centerRectColor);
CBrush redBrush(rightRectColor);
CBrush hatchRedBrush(HS_CROSS, ellipseColor);
//Set up object for painting
CPaintDC dc (this);
CRect rect;
GetClientRect (&rect);
dc.SetMapMode (MM_ANISOTROPIC);
dc.SetWindowExt (100, 100);
dc.SetViewportExt (rect.Width (), rect.Height ());
//select pen
dc.SelectObject(&blackPen);
//Rectangle red interior color
dc.SelectObject(&redBrush);
dc.Rectangle(rightRect); //(75, 35, 90, 50);
//Rectangel black interior
dc.SelectObject(&blackBrush);//Select Brush
dc.Rectangle( centerRect);//(40, 20, 55, 80);
//Ellipse
dc.SelectObject(&hatchRedBrush);//Select Brush
dc.Ellipse(ellipse.cx, ellipse.cy, (ellipse.cx) + 10, (ellipse.cy) + 10);//10, 10, 20, 20);
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialogEx::OnPaint();
}
}
// The system calls this function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CCSIT861a3VasilkovskiyDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CAboutDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
//SetCapture();
CClientDC dc(this);
CRect rect;
GetClientRect(&rect);
dc.SetMapMode(MM_ANISOTROPIC);
dc.SetWindowExt(100, 100);
dc.SetViewportExt(rect.Width(), rect.Height());
CRect rectEllipse(10, 10, 20, 20);
CDialogEx::OnLButtonDown(nFlags, point);
}
void CAboutDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
ReleaseCapture ();
CDialogEx::OnLButtonUp(nFlags, point);
}
void CAboutDlg::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
CDialogEx::OnMouseMove(nFlags, point);
}
#包括“stdafx.h”
#包括“CSIT861a3 Vasilkovskiy.h”
#包括“CSIT861a3 VasilkovskiyDlg.h”
#包括“afxdialogex.h”
#ifdef_调试
#定义新调试\u新
#恩迪夫
//用于应用程序的CAboutDlg对话框关于
类别CAboutDlg:公共CDialogEx
{
公众:
CAboutDlg();
//对话框数据
枚举{IDD=IDD_ABOUTBOX};
受保护的:
虚拟void数据交换(CDATA交换*pDX);//DDX/DDV支持
//实施
受保护的:
声明消息映射()
公众:
afx_msg void only buttondown(UINT nFlags,CPoint point);
afx_msg void onlbuttonnup(UINT nFlags,CPoint point);
afx_msg void OnMouseMove(UINT nFlags,CPoint point);
};
CAboutDlg::CAboutDlg():CDialogEx(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDATA Exchange*pDX)
{
CDialogEx::DoDataExchange(pDX);
}
开始消息映射(CAboutDlg、CDialogEx)
关于WM_LBUTTONDOWN()
关于_WM_LBUTTONUP()
关于_WM_MOUSEMOVE()
结束消息映射()
//CCSIT861a3VasilkovskiyDlg对话框
CCSIT861a3VasilkovskiyDlg::CCSIT861a3VasilkovskiyDlg(CWnd*pParent/*=NULL*/)
:CDialogEx(CCSIT861a3VasilkovskiyDlg::IDD,pParent)
{
m_hIcon=AfxGetApp()->加载图标(IDR_大型机);
椭圆色=RGB(255,0,0);
centerRectColor=RGB(0,0,0);
rightRectColor=RGB(255,0,0);
centerRect.left=40;
centerRect.top=20;
centerRect.right=55;
centerRect.bottom=80;
righrect.left=75;
righrect.top=35;
righrect.right=90;
righrect.bottom=50;
椭圆cx=10;
椭圆y=10;
mouseCaptured=false;
}
无效CCSIT661A3VASILKOVSKIYDLG::DoDataExchange(CDATA交换*pDX)
{
CDialogEx::DoDataExchange(pDX);
}
开始信息地图(CCSIT861a3VasilkovskiyDlg,CDialogEx)
关于\u WM\u SYSCOMMAND()
关于油漆
关于_WM_QUERYDRAGICON()
结束消息映射()
//CCSIT861a3VasilkovskiyDlg消息处理程序
BOOL CCSIT861a3VasilkovskiyDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
//将“关于…”菜单项添加到系统菜单。
//IDM_ABOUTBOX必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX&0xFFF0)=IDM_ABOUTBOX);
断言(IDM_ABOUTBOX<0xF000);
CMenu*pSysMenu=GetSystemMenu(FALSE);
如果(pSysMenu!=NULL)
{
布尔·布纳梅沃;
CString strAboutMenu;
bNameValid=strAboutMenu.LoadString(id_ABOUTBOX);
断言(bNameValid);
如果(!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_分隔符);
pSysMenu->AppendMenu(MF_字符串、IDM_ABOUTBOX、strAboutMenu);
}
}
//设置此对话框的图标。框架会自动执行此操作
//当应用程序的主窗口不是对话框时
SetIcon(m_hIcon,TRUE);//设置大图标
SetIcon(m_hIcon,FALSE);//设置小图标
//TODO:在此处添加额外的初始化
return TRUE;//除非将焦点设置为控件,否则返回TRUE
}
void CCSIT861a3VasilkovskiyDlg::OnSysCommand(UINT-nID,LPARAM-LPARAM)
{
if((nID&0xFFF0)=IDM_ABOUTBOX)
{
卡布特德尔加布特;
dlgAbout.DoModal();
}
其他的
{
CDialogEx::OnSysCommand(nID,lParam);
}
}
//如果在对话框中添加最小化按钮,则需要以下代码
//来绘制图标。对于使用文档/视图模型的MFC应用程序,
//这是框架自动为您完成的。
无效CCSIT861a3VasilkovskiyDlg::OnPaint()
{
//创建笔和指向旧笔的指针
CPen blackPen;
blackPen.CreatePen(PS_SOLID,1,RGB(0,0,0));
//制造一个粗麻布
CBrush黑刺(centerRectColor);
CBrush红色笔刷(右矩形颜色);
CBrush hatchRedBrush(HS_十字,椭圆色);
//设置绘画对象
CPaintDC dc(本);
正确无误;
GetClientRect(&rect);
dc.SetMapMode(MM_);
dc.SetWindowExt(100100);
dc.SetViewportExt(rect.Width(),rect.Height());
//选择笔
dc.选择对象(&blackPen);
//矩形红色内饰颜色
dc.选择对象(&redBrush);
dc.矩形(righrect);/(75,35,90,50);
//矩形黑色内饰
dc.SelectObject(&blackBrush);//选择画笔
直流矩形(centerRect);/(40,20,55,80);
//椭圆
dc.SelectObject(&hatchRedBrush);//选择画笔
dc.椭圆(椭圆.cx,椭圆.cy,(椭圆.cx)+10,(椭圆.cy)+10);//10,10,20,20);
if(IsIconic())
{
CPaintDC(this);//用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND,reinterpret_cast(dc.GetSafeHdc()),0);
//在客户端矩形中居中图标
int cxIcon=GetSystemMetrics(SM_cxIcon);
int cycon=GetSystemMetrics(SM_cycon);
正确无误;
GetClientRect(&rect);
intx=(rect.Width()-cxIcon+1)/2;
int y=(rect.Height()-cycon+1)/2;
//绘制图标
dc.DrawIcon(x,y,m_hIcon);
}
其他的
{
CDialogEx::OnPaint();
}
}
//系统调用此函数以获取用户拖动时要显示的光标
//最小化的窗口。
HCURSOR CCSIT661A3VASILKOVSKIYDLG::OnQueryDragIcon()
{
返回静态_cast(m_hIcon);
}
void CAboutDlg::OnLButtonDown(UINT nFlags,CPoint point)
{
//TODO:在此处添加消息处理程序代码和/或调用默认值
//SetCapture();
CClientDC dc(本);
正确无误;
GetClientRect(&rect);
dc.SetMapMode(MM_);
dc.SetWindowExt(100100);
dc.SetViewportExt(rect.Width(),rect.Height());
正确的矩形椭圆(10,10,20,20);
CDialogEx::OnL