Environment: Visual C++ 6.0 with Service Pack 3, Windows 9x, Windows NT 4.0 with Service Pack 6a and Windows 2000
This sample is an MFC application using the document/view architecture that can load, display and print graphics files like GIF, JPEG, BMP (bitmap), ICO (icon), WMF (metafile) and EMF (Win32-enhanced metafile). It shows
- how to use the OleLoadPicturePath function and the IPicture interface to load and display those graphics files.
- how to support more than one file extension per MFC document type.
(Look into the ImgViewerDoc.cpp, ImgViewerView.cpp and MainFrm.cpp files.)
(Look into the MulExtDocTmp.cpp, MulExtDocTmp.h and ImgViewer.cpp files.)
References:
Please see the following article in the Microsoft Knowledge Base:
Q218972 How To Load and Display Graphics Files w/LOADPIC.EXE
(Note that LOADPIC.EXE does not handle palettes. As a result, it won’t display a 256-color image correctly in 256-color mode. Also, it uses the OleLoadPicture function instead of the OleLoadPicturePath function.)
Q141921 HOWTO: How to Support Two File Extensions per MFC Document Type
Q198538 DocMgrEx.exe Assoc Multiple File Extensions w/1 Doc Type
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