如何从tabControl项调用对话框方法

本文介绍了如何从tabControl项调用对话框方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个对话框和一个选项卡控件. 对话框的类为MyDlg，选项卡控件的类为MyTabCtr. MyDlg.h

I have a dialog box and a tab control on it. class for dialog box is MyDlg and class for tab control is MyTabCtr. MyDlg.h

class MyDlg: public CDialog { enum { IDD = IDD_ZF1SDKLIGHTTUTORIAL_DIALOG }; public: MyDlg(CWnd* pParent = NULL);// standard constructor LRESULT ButtonPressed(WPARAM w, LPARAM l);////do this MyTabCtrl m_cTab; //Reference for tab control class protected: virtual void DoDataExchange(CDataExchange* pDX);// DDX/DDV support }

MyDlg.cpp

MyDlg.cpp

BEGIN_MESSAGE_MAP(CZF1SDKLightTutorialDlg, CDialog) ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_MESSAGE(WM_BUTTONPRESSED,ButtonPressed) ////do this ON_WM_TIMER() END_MESSAGE_MAP() BOOL Mylg::OnInitDialog() { CDialog::OnInitDialog(); SetIcon(m_hIcon, TRUE); // Set big icon m_cTab.Init(); m_cTab.InsertItem(0,"Register new user"); m_cTab.InsertItem(1,"Identify fingerprints"); m_cTab.CreateButton("Register User",24,0,0,520, 450,80); return TRUE; // return TRUE unless you set the focus to a control } LRESULT MyDlg::ButtonPressed(WPARAM w, LPARAM l)////do this { int a=3,b=6,c; c=a+b; return 0; } void MyDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); DDX_Control(pDX, IDC_TAB1, m_cTab); }

MyTabCtrl .h

MyTabCtrl .h

class MyTabCtrl : public CTabCtrl { DECLARE_DYNAMIC(MyTabCtrl) public: int m_DialogID,ControlID;; MyTabCtrl(); virtual ~MyTabCtrl(); LRESULT ButtonPressed(WPARAM w, LPARAM l); //mouse button clicked on a button control void CreateButton(LPCTSTR sCaption, int nID, int iTab, UINT uLocation = 0, int iX = 0, int iY = 0, int iLen = 50);

MyTabCtrl .cpp

MyTabCtrl .cpp

BEGIN_MESSAGE_MAP(MyTabCtrl, CTabCtrl) ON_MESSAGE(WM_BUTTONPRESSED,ButtonPressed) END_MESSAGE_MAP() LRESULT MyTabCtrl::ButtonPressed(WPARAM w, LPARAM l) { //to do return 0; }

当我单击注册用户"按钮时，它运行MyTabCtrl :: ButtonPressed(WPARAM w，LPARAM l)的代码不会运行MyDlg :: ButtonPressed(WPARAM w，LPARAM l) 但是我想运行MyDlg :: ButtonPressed(WPARAM w，LPARAM l)(How?)

When I click the button "Register User" it run the code of MyTabCtrl::ButtonPressed(WPARAM w, LPARAM l) does not run MyDlg::ButtonPressed(WPARAM w, LPARAM l) But I want to run of MyDlg::ButtonPressed(WPARAM w, LPARAM l)(How?)

推荐答案

您可以将消息传递给选项卡的父级控制(对话框窗口): You may pass the message over to the parent of your tab control (the dialog window): LRESULT MyTabCtrl::ButtonPressed(WPARAM w, LPARAM l) { return GetParent()->GetSafeHwnd() ? ::SendMessage(GetParent()->GetSafeHwnd(), WM_BUTTONPRESSED, w, l) : 0; }

另一个选项是将指向对话框的指针存储在选项卡控件中，并使用此指针从对话框中调用函数:

Another option is to store a pointer to the dialog in your tab control and use this pointer to call functions from the dialog:

// MyTabCtrl.h class MyDlg; class MyTabCtrl : public CTabCtrl { MyDlg* m_pDlg; } // MyTabCtrl.cpp MyTabCtrl::MytabCtrl() { m_pDlg = NULL; } LRESULT MyTabCtrl::ButtonPressed(WPARAM w, LPARAM l) { return m_pDlg ? m_pDlg->ButtonPressed(w, l) : 0; } // MyDlg.cpp BOOL MyDlg::OnInitDialog() { m_cTab.m_pDlg = this; }

LRESULT MyTabCtrl::ButtonPressed(WPARAM w, LPARAM l) { // return GetParent()->GetSafeHwnd() ? ::SendMessage(GetParent()->GetSafeHwnd(), WM_BUTTONPRESSED, w, l) : 0; //return m_MyDlg?m_MyDlg->ButtonPressed(w,l):0; int nID = 0; CString s; HWND h = (HWND)w; BOOL bKeyPress = (BOOL)l; if(h == NULL){return 0;} CPoint cur; CRect rc; ::GetCursorPos(&cur); ::GetWindowRect(h,rc); CWnd* pWnd = CWnd::FromHandle(h); pWnd->GetWindowTextA(s); if(s==buttonCaption) { //do we have a normal push button? DWORD dwStyle = WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON|WS_TABSTOP; DWORD dw = pWnd->GetStyle(); dw &= ~(dwStyle);//remove all the styles from dw if(dw <= 1)//regular pushbutton { nID = pWnd->GetDlgCtrlID(); GetParent()->PostMessage(WM_BUTTONPRESSED,nID,0); } } //make sure mouse is inside of button when released else if((cur.x > rc.left && cur.x < rc.right && cur.y > rc.top && cur.y < rc.bottom) || bKeyPress) { //do we have a normal push button? DWORD dwStyle = WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON|WS_TABSTOP; DWORD dw = pWnd->GetStyle(); dw &= ~(dwStyle);//remove all the styles from dw if(dw <= 1)//regular pushbutton { nID = pWnd->GetDlgCtrlID(); GetParent()->PostMessage(WM_BUTTONPRESSED,nID,0); } } return 0; }