Determining File Types - Win32 Programmer's Reference

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Determining File Types

The Quick View program attempts a simple association using the filename extension. If there is no filename extension or if there are no file viewers registered for the filename extension, Quick View calls each registered file viewer to see if any of them recognize the file. If more than one file viewer is registered for the same filename extension, Quick View calls each file viewer starting with the last one in the list. If Quick View cannot find a file viewer that can read the file, the Quick View operation fails and Quick View displays the following message.

There are no viewers registered for this type of file. Would you like to try the default viewer?

The default viewer displays a hexadecimal dump using the word processing engine.

For more information, see Quick View Program.

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