关于LRESULT CALLBACK WindowProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)

[大前置]

LRESULT CALLBACK WindowProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
没有反应

// tgiiDlg.cpp : implementation file
//

#include "stdafx.h"
#include "tgii.h"
#include "tgiiDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTgiiDlg dialog

CTgiiDlg::CTgiiDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTgiiDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTgiiDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTgiiDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTgiiDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTgiiDlg, CDialog)
	//{{AFX_MSG_MAP(CTgiiDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTgiiDlg message handlers

BOOL CTgiiDlg::OnInitDialog()
{
	CDialog::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)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		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 CTgiiDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::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 CTgiiDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (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
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CTgiiDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
LRESULT CALLBACK WindowProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
	AfxMessageBox("OK");//测试用的,什么整个函数都没接到任何消息
	switch(uMsg)
	{
	case WM_MOVE:
	case WM_SIZE:
		break;
	case WM_LBUTTONDOWN://表明接按下鼠标左键。
		break;
	case WM_RBUTTONDOWN://表明按下鼠标右键
		break;
	case WM_MOUSEHOVER://表明发生移动。
		break;
    case WM_MOUSELEAVE:
		break;
	case WM_KEYDOWN:
		               switch(toupper((int)wParam))
					   {
					   case 'A':
					   case VK_LEFT:
					   case VK_RIGHT:
					   case VK_UP:
					   case VK_DOWN:
					   case VK_RETURN:
					   case VK_ESCAPE:
					   case VK_F12:
						   break;
					   }
           break;
	 case WM_COMMAND:
		               switch(wParam)
					   {
					   //case://IDC
						   break;
					   }
            break;
	 case WM_CLOSE:
			 break;
     case WM_DESTROY:
			 break;
	  default:
			 return DefWindowProc(hWnd,uMsg,wParam,lParam);
	}	
}

// tgiiDlg.h : header file
//

#if !defined(AFX_TGIIDLG_H__1867554C_8DA0_4D1C_A46D_AACBA32F422A__INCLUDED_)
#define AFX_TGIIDLG_H__1867554C_8DA0_4D1C_A46D_AACBA32F422A__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CTgiiDlg dialog

class CTgiiDlg : public CDialog
{
// Construction
public:
	CTgiiDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CTgiiDlg)
	enum { IDD = IDD_TGII_DIALOG };
		// NOTE: the ClassWizard will add data members here
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CTgiiDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CTgiiDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

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

#endif // !defined(AFX_TGIIDLG_H__1867554C_8DA0_4D1C_A46D_AACBA32F422A__INCLUDED_)

[ouyh12345]

WindowProc作为消息处理过程函数，得在某个地方和消息关联起来

sdk里是createwindow，mfc里，用setwindowlong

[大前置]

能给个简单的例子吗?

[tangyangyu]

楼主，MFC中的消息处理不是你这样用的。你可以跟踪进入，他里面一般会有一个默认的窗口处理函数（处理一般），如果要响应自己的消息的话。MFC中有一个消息处理机制：比如窗口重绘时，会发一个WM_PAINT消息，这个消息在发送时会绑定一个窗口指针，通过指针我们可以找到窗口的句柄，然后在目的窗口里寻找促发函数。

//{{AFX_MSG(CTgiiDlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
//}}AFX_MSG

DECLARE_MESSAGE_MAP()//消息映射宏，放在类定义中

BEGIN_MESSAGE_MAP(CTgiiDlg, CDialog)//放在类实现中，当该窗口收到消息时会在这里来寻找是否
//{{AFX_MSG_MAP(CTgiiDlg) //有映射函数，如果找不到就会到该窗口的基类中去找，直至找到顶层的
ON_WM_SYSCOMMAND() //窗口类CWnd中，会有默认的窗口处理函数的。
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

只是抛砖引玉之谈呵呵！！

[r_swordsman]

在CAboutDlg的public部分加上：

LRESULT WindowProc(
   UINT message,
   WPARAM wParam,
   LPARAM lParam 
)
{
 AfxMessageBox("OK");//测试用的,什么整个函数都没接到任何消息
return FALSE;
}

[tangyangyu]

但本质上mfc编程和在SDK上是一样的。只不过有很多的东西被隐藏

[sxd269]

呵呵，mfc的WindowProc已经被封装成这个样子，你只需override就可以,当然记得在头文件中声明

LRESULT CTgiiDlg::WindowProc(UINT uMsg,WPARAM wParam,LPARAM lParam)
{
AfxMessageBox("OK");//测试用的,什么整个函数都没接到任何消息
return CTgiiDlg::WindowProc(UINT uMsg,WPARAM wParam,LPARAM lParam);
}

[大前置]

这方面的资料我看了好几天了
几乎都能背下来了
就差这个函数重载不了

我在 有WinMain() 的程序里可以

在MFC 对话框重载就不行了

谁能给个可以运行的例子吗

能运行就行

[greatws]

/**在类中protected添加***/
virtual LRESULT WindowProc(UINT uMsg,WPARAM wParam,LPARAM lParam);
/********/

//实现文件部分
LRESULT CTgiiDlg::WindowProc(UINT uMsg,WPARAM wParam,LPARAM lParam)
{
    AfxMessageBox("OK");//测试用的,什么整个函数都没接到任何消息
    switch(uMsg)
    {
    case WM_MOVE:
    case WM_SIZE:
        break;
    case WM_LBUTTONDOWN://表明接按下鼠标左键。
        break;
    case WM_RBUTTONDOWN://表明按下鼠标右键
        break;
    case WM_MOUSEHOVER://表明发生移动。
        break;
    case WM_MOUSELEAVE:
        break;
    case WM_KEYDOWN:
                       switch(toupper((int)wParam))
                       {
                       case 'A':
                       case VK_LEFT:
                       case VK_RIGHT:
                       case VK_UP:
                       case VK_DOWN:
                       case VK_RETURN:
                       case VK_ESCAPE:
                       case VK_F12:
                           break;
                       }
           break;
     case WM_COMMAND:
                       switch(wParam)
                       {
                       //case://IDC
                           break;
                       }
            break;
     case WM_CLOSE:
             break;
     case WM_DESTROY:
             break;
      default:
    return CDialog::WindowProc(UINT uMsg,WPARAM wParam,LPARAM lParam);
    }    
}

[jscn123789abc]

ding...

[minkefusiji]

楼主厉害！

[andyiouv1]

学东西啦