IOUtils.TPathPrefixType

Delphi Information

From IOUtils.pas

TPathPrefixType = {
	pptNoPrefix,
	pptExtended,
	pptExtendedUNC
};

Unit: IOUtils

Type: enum

C++ Information

From IOUtils.hpp

enum TPathPrefixType{
	pptNoPrefix,
	pptExtended,
	pptExtendedUNC
};

Unit: IOUtils

Type: enum

Description

Enumerates the possible extended path prefix types.

TPathPrefixType enumerates the possible types of extended path types. An extended prefix looks like \\?\ or \\?\UNC\. The following are possible values of TPathPrefixType.

Value	Meaning
pptNoPrefix	Path has no extended prefix.
pptExtended	Path has an extended prefix (\\?\).
pptExtendedUNC	Path has an extended UNC prefix (\\?\UNC\).

Paths prefixed with \\?\ or \\?\UNC\ are Windows-specific and can be of very big lengths and not restricted to 255 characters (MAX_PATH). It is a common case today to manage paths longer than 255 characters. Prefixing those with \\?\ solves the problem.

See Also

• GetExtendedPrefix

• IsExtendedPrefixed