- 打开按钮相应消息
- void CLoadBmpDlg::OnBtnOpenBmp()
- {
- // TODO: Add your control notification handler code here
- ////选取图片文件
- CFileDialog file_open_dlg(TRUE,NULL,NULL,OFN_HIDEREADONLY,"BMP Files(*.bmp)|*.bmp|All Files(*.*)|*.*||");
- if(file_open_dlg.DoModal() != IDOK)
- {
- return;
- }
- m_pFilePath = file_open_dlg.GetPathName();
- // ((CStatic*)GetDlgItem(IDC_STC_BMP))->SetBitmap(::LoadBitmap(AfxGetResourceHandle(), MAKEINTRESOURCE(IDB_BITMAP)));
- // HBITMAP hsource = (HBITMAP)LoadImage(AfxGetInstanceHandle(), m_pFilePath, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
- // HBITMAP hbmp = ((CStatic*)GetDlgItem(IDC_STC_BMP))-> SetBitmap(hsource);
- Invalidate( FALSE );
- }
///OnPaint函数
- void CLoadBmpDlg::OnPaint()
- {
-
- //////////////////////////////////////////////////////////////
- CPaintDC bmpDC(GetDlgItem( IDC_STC_BMP ));
- CBitmap SourceImage;
- HBITMAP OldBitmap;
- CDC mDC;
- // SourceImage.LoadBitmap(image_name);
- HANDLE filehandle = (HBITMAP)LoadImage( NULL, m_pFilePath, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE );
- if ( filehandle != NULL )
- {
- BITMAP bmpInfo;
- SourceImage.Attach( filehandle );
- SourceImage.GetBitmap( &bmpInfo );
- CDC dcCompatible;
- dcCompatible.CreateCompatibleDC(&bmpDC);
- OldBitmap = (HBITMAP)dcCompatible.SelectObject(&SourceImage);
- CRect rec;
- ((CStatic *)GetDlgItem(IDC_STC_BMP))->GetClientRect(&rec);
- // dc.BitBlt(rec.left, rec.top, rec.Width(), rec.Height(), &dcCompatible, 0, 0, SRCCOPY);
- int n = bmpDC.StretchBlt(rec.left, rec.top, rec.Width(), rec.Height(), &dcCompatible, rec.left, rec.top, bmpInfo.bmWidth, bmpInfo.bmHeight, SRCCOPY);
- //
- // CBrush brush;
- // brush.CreatePatternBrush(&SourceImage);
- // bmpDC.FillRect(rec, &brush);
- // bmpDC.StretchBlt(rec.left, rec.top, rec.Width(), rec.Height(), &dcCompatible, rec.left, rec.top, bmpInfo.bmWidth, bmpInfo.bmHeight, SRCCOPY);
- // brush.DeleteObject();
- dcCompatible.SelectObject(&OldBitmap);
- SourceImage.Detach();
- }
- }
