image viewers

[Sharon Gottlieb]

I am looking for an image viewer in C++ (visual - mfc) that can mainipulate a tif, jpg...with zoom and antialiasing (greyscale) features. Any recommendtaions? I am not interested in anything that requires a runtime license fee (developer - OK, free is better). Any suggestions where to start, investigate...

Thanks in advance

Sharon Gottlieb

[duongpv]

You can try this to view:
In :oDataChange:

void CYourImageViewerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_STATIC_PREVIEW, ctrlPicturePreview);
}

Open and view image:

void CYourImageViewerDlg::OpenAndView()
{	
        CImage myImage;
	CString m_strFilter = _T("");  // Show all file
	HRESULT hr;
	// Open File Dialog
	CFileDialog objFileDialog(TRUE, NULL, NULL, OFN_FILEMUSTEXIST, m_strFilter);
	
	if (objFileDialog.DoModal() != IDOK)
		return;

	// Store the file name.
	strFilePath = objFileDialog.GetPathName();	

	// ==== Load the image into the control box. ===
	hr = myImage.Load(strFilePath);
	if (SUCCEEDED(hr))
	{
		ctrlPicturePreview.SetBitmap((HBITMAP) myImage);
	}
}

Well, this can view images, but not zoom...

[ProgramArtist]

Hi,

have a look at http://www.codeproject.com/KB/graphics/cximage.aspx

It is a library that does what you want, comes with working demos, is free (incl. source code) and compiles with different versions of MSVC.

The performance is ok (although I think there are faster libs, but it's free...).

With regards
Programartist