superclass.cpp

VC程序设计技巧与实例（2）关于窗口和桌面系统、文件和系统操作、消息影射的原代码

// SuperClass.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "SuperClass.h"

#include "MainFrm.h"
#include "ChildFrm.h"
#include "SuperClassDoc.h"
#include "SuperClassView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSuperClassApp

BEGIN_MESSAGE_MAP(CSuperClassApp, CWinApp)
	//{{AFX_MSG_MAP(CSuperClassApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard file based document commands
	ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
	ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
	// Standard print setup command
	ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSuperClassApp construction

CSuperClassApp::CSuperClassApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CSuperClassApp object

CSuperClassApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CSuperClassApp initialization

BOOL CSuperClassApp::InitInstance()
{
	SuperClassButtons();
	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif

	// Change the registry key under which our settings are stored.
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization.
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));

	LoadStdProfileSettings();  // Load standard INI file options (including MRU)

	// Register the application's document templates.  Document templates
	//  serve as the connection between documents, frame windows and views.

	CMultiDocTemplate* pDocTemplate;
	pDocTemplate = new CMultiDocTemplate(
		IDR_SUPERCTYPE,
		RUNTIME_CLASS(CSuperClassDoc),
		RUNTIME_CLASS(CChildFrame), // custom MDI child frame
		RUNTIME_CLASS(CSuperClassView));
	AddDocTemplate(pDocTemplate);

	// create main MDI Frame window
	CMainFrame* pMainFrame = new CMainFrame;
	if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
		return FALSE;
	m_pMainWnd = pMainFrame;

	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);

	// Dispatch commands specified on the command line
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;

	// The main window has been initialized, so show and update it.
	pMainFrame->ShowWindow(m_nCmdShow);
	pMainFrame->UpdateWindow();

	return TRUE;
}


/////////////////////////////////////////////////////////////////////////////
// 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)
		// No message handlers
	//}}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()

// App command to run the dialog
void CSuperClassApp::OnAppAbout()
{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
}

/////////////////////////////////////////////////////////////////////////////
// CSuperClassApp message handlers

//声明全局变量
WNDPROC lpfnOldButtonWndProc;

LRESULT CALLBACK ButtonWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

void CSuperClassApp::SuperClassButtons()
{
	WNDCLASS wndClass;

	// 获取已经存在的类信息
	::GetClassInfo(AfxGetInstanceHandle(), "BUTTON", &wndClass);

	//设置不能由函数GetClassInfo获得且必须填充的信息
    wndClass.hInstance = AfxGetInstanceHandle();
    wndClass.lpszMenuName = NULL; 
    //wndClass.lpszClassName = _T("BUTTON"); // 可以在这里重命名窗口类

	// 保留原来的窗口过程，用自定义的窗口过程替换之
    lpfnOldButtonWndProc = wndClass.lpfnWndProc; 
    wndClass.lpfnWndProc = ButtonWndProc;

	// 注册窗口类
	::RegisterClass(&wndClass);
}

LRESULT CALLBACK ButtonWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_CREATE:
			MessageBox(hWnd, _T("按钮创建前发出消息WM_CREATE"), TEXT("提示！"), MB_OK);
			break;
		case WM_NCCREATE:
			MessageBox(hWnd, TEXT("按钮创建前发出消息WM_NCCREATE"), TEXT("提示！"), MB_OK);
			break;
	}
	return (lpfnOldButtonWndProc)(hWnd, message, wParam, lParam);
}