用Visual C++实现屏幕抓程序(10)

void CCaptureDlg::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();
　}
}

HCURSOR CCaptureDlg::OnQueryDragIcon()
{
　return (HCURSOR) m_hIcon;
}

void CCaptureDlg::OnCancel()
{
　if(bTray)
　　DeleteIcon();
　CDialog::OnCancel();
}

void CCaptureDlg::OnAbout()
{
　CAboutDlg dlg;
　dlg.DoModal();
}

void CCaptureDlg::OnBrowse()
{
　CString str;
　BROWSEINFO bi;
　char name[MAX_PATH];
　ZeroMemory(&bi,sizeof(BROWSEINFO));
　bi.hwndOwner=GetSafeHwnd();
　bi.pszDisplayName=name;
　bi.lpszTitle="Select folder";
　bi.ulFlags=BIF_RETURNONLYFSDIRS;
　LPITEMIDLIST idl=SHBrowseForFolder(&bi);
　if(idl==NULL)
　　return;
　SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH));
　str.ReleaseBuffer();
　m_Path=str;
　if(str.GetAt(str.GetLength()-1)!=’’)
　　m_Path+="";
　UpdateData(FALSE);
}