WTL自画按钮与文件对话框

//////////////WTL自画按钮///////////////// class CBmpEixtBtn : public CBitmapButtonImpl<CBmpEixtBtn> { public: DECLARE_WND_SUPERCLASS(_T("WTL_BmpBtn"), GetWndClassName()) // added border style (auto3d_single) CBmpEixtBtn(DWORD dwExtendedStyle = BMPBTN_AUTOSIZE /*| BMPBTN_AUTO3D_SINGLE*/, HIMAGELIST hImageList = NULL) : CBitmapButtonImpl<CBmpEixtBtn>(dwExtendedStyle, hImageList) { } BEGIN_MSG_MAP(CBmpEixtBtn) CHAIN_MSG_MAP(CBitmapButtonImpl<CBmpEixtBtn>) END_MSG_MAP() // override of CBitmapButtonImpl DoPaint(). Adds fillrect void DoPaint(CDCHandle dc) { // added by SoftGee to resolve image artifacts BITMAP bmp ; CBitmap bitmap ; bitmap.LoadBitmapW(IDB_BITMAP1) ; bitmap.GetBitmap(&bmp) ; //CPaintDC dc(this->m_hWnd) ; CDC dcImage ; dcImage.CreateCompatibleDC(dc.m_hDC) ; HBITMAP hBitmapOld = dcImage.SelectBitmap(bitmap.m_hBitmap) ; dc.StretchBlt(0,0, 80, 25, dcImage.m_hDC,0,0,bmp.bmWidth,bmp.bmHeight,SRCCOPY) ; bitmap.DeleteObject() ; dcImage.DeleteDC() ; // call ancestor DoPaint() method CBitmapButtonImpl<CBmpEixtBtn>::DoPaint(dc); } }; 在OnInitDialog里面: CBmpEixtBtn m_exitBtn; m_exitBtn.SubclassWindow(GetDlgItem(IDC_BUTTON1)); //////////////////WTL文件对话框/////////////////// CEdit m_edit; m_edit.Attach(GetDlgItem(IDC_EDIT1)); TCHAR szDir[MAX_PATH]; BROWSEINFO bi; ITEMIDLIST *pidl; bi.hwndOwner = this->m_hWnd; bi.pidlRoot = NULL; bi.pszDisplayName = szDir; bi.lpszTitle = L"请选择目录"; bi.ulFlags = BIF_RETURNONLYFSDIRS; bi.lpfn = NULL; bi.lParam = 0; bi.iImage = 0; pidl = SHBrowseForFolder(&bi); if(pidl == NULL) return 0; if(!SHGetPathFromIDList(pidl, szDir)) return 1; m_edit.SetWindowTextW(szDir);