www.pudn.com > 用VC++6.0实现“更改图标”对话框.zip > ChangeIconDlg.cpp

// ChangeIconDlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "ChangeIconDlg.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CChangeIconDlg dialog 
 
 
CChangeIconDlg::CChangeIconDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CChangeIconDlg::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CChangeIconDlg) 
	m_strFileName = _T(""); 
	//}}AFX_DATA_INIT 
} 
 
 
void CChangeIconDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CChangeIconDlg) 
	DDX_Text(pDX, IDC_EDITBOX_FILENAME, m_strFileName); 
	//}}AFX_DATA_MAP 
} 
 
 
BEGIN_MESSAGE_MAP(CChangeIconDlg, CDialog) 
	//{{AFX_MSG_MAP(CChangeIconDlg) 
	ON_BN_CLICKED(IDC_BUTTON_BROWSE, OnButtonBrowse) 
	ON_EN_UPDATE(IDC_EDITBOX_FILENAME, OnUpdateEditboxFilename) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CChangeIconDlg message handlers 
 
BOOL CChangeIconDlg::OnInitDialog()  
{ 
	CDialog::OnInitDialog(); 
	char* s=new char[40]; 
	GetWindowsDirectory(s,40); 
	lpszPath=s; 
	lpszPath+="\\System\\Shell32.dll"; 
	bAccord=FALSE; 
	if(m_strFileName=="") 
	{ 
		m_strFileName=lpszPath; 
		m_nIndex=0; 
	} 
	UpdateData(FALSE); 
	VERIFY(m_listboxIcon.SubclassDlgItem(IDC_LISTBOX_ICON, this)); 
	CRect rect; 
	m_listboxIcon.GetWindowRect(rect); 
	ScreenToClient(rect); 
	rect.bottom+=GetSystemMetrics(SM_CXHSCROLL)-13; 
	m_listboxIcon.MoveWindow(rect,TRUE); 
	m_listboxIcon.SetColumnWidth(37); 
	m_listboxIcon.SetItemHeight(0,45); 
	HICON hIcon; 
	int i=0; 
	do 
	{	 
		hIcon=ExtractIcon(AfxGetApp()->m_hInstance,m_strFileName,i++); 
		if(hIcon!=NULL) 
		{ 
			if(m_nIndex<0) 
				m_nIndex=0; 
			m_listboxIcon.AddIconItem(hIcon,m_nIndex); 
		} 
	}while(hIcon!=NULL); 
	m_listboxIcon.SetCurSel(m_nIndex); 
	bAccord=TRUE; 
	return TRUE;  // return TRUE unless you set the focus to a control 
	              // EXCEPTION: OCX Property Pages should return FALSE 
} 
 
void CChangeIconDlg::OnButtonBrowse()  
{ 
	// TODO: Add your control notification handler code here 
	UpdateData(TRUE);  
	CString strDir=m_strFileName; 
	strDir.MakeReverse(); 
	strDir.Delete(0,strDir.Find('\\')+1); 
	strDir.MakeReverse(); 
	LPCTSTR szFilter="图标文件|*.dll;*.exe;*.ico|程序|*exe|库|*.dll|图标|*.ico|所有文件|*.*||"; 
	CFileDialog FileDlg(TRUE,NULL,NULL,OFN_HIDEREADONLY,szFilter); 
	FileDlg.m_ofn.lpstrTitle="更改图标"; 
	FileDlg.m_ofn.lpstrInitialDir=strDir; 
	if(FileDlg.DoModal()==IDOK) 
		m_strFileName=FileDlg.GetPathName(); 
	UpdateData(FALSE); 
	ShowIcon(); 
 
} 
 
void CChangeIconDlg::ShowIcon() 
{ 
	int i=0; 
	HICON hIcon; 
	UpdateData(FALSE); 
	m_listboxIcon.ResetContent(); 
	do 
	{ 
		hIcon=ExtractIcon(AfxGetApp()->m_hInstance,m_strFileName,i++); 
		if(hIcon==NULL&&i==1) 
		{ 
			MessageBox("该文件中不包含图标!",NULL,MB_OK|MB_ICONEXCLAMATION); 
			m_strFileName=lpszPath; 
			i=0; 
			hIcon=ExtractIcon(AfxGetApp()->m_hInstance,m_strFileName,i++); 
			UpdateData(FALSE); 
		} 
		if(hIcon!=NULL) 
		{ 
			m_listboxIcon.AddIconItem(hIcon,0); 
		} 
	}while(hIcon!=NULL); 
	m_listboxIcon.SetCurSel(m_nIndex); 
	bAccord=TRUE; 
} 
 
void CChangeIconDlg::OnOK()  
{ 
	// TODO: Add extra validation here 
	m_nIndex=m_listboxIcon.nSelect; 
	if(bAccord==FALSE) 
	{ 
		UpdateData(TRUE); 
		WIN32_FIND_DATA FindFileData; 
		if(FindFirstFile(m_strFileName,&FindFileData)==INVALID_HANDLE_VALUE) 
		{ 
			MessageBox("未找到该文件!"); 
			m_strFileName=lpszPath; 
			m_nIndex=0; 
			UpdateData(FALSE); 
		} 
		UpdateData(TRUE); 
		ShowIcon(); 
		return; 
	} 
	CDialog::OnOK(); 
} 
 
void CChangeIconDlg::OnUpdateEditboxFilename()  
{ 
	bAccord=FALSE; 
}