FileIsInDirectory function

Declaration

function FileIsInDirectory(const Filename: string; 
 const Directory: string): Boolean

Arguments

Function result

Returns True if the file and directory share the same paths.

Description

FileIsInDirectory is a Boolean function used to determine whether the file in FileName is located in Directory. FileIsInDirectory calls the CleanAndExpandFilename and CleanAndExpandDirectory routines to resolve drive letters or relative path information included in the arguments.

The return value is True when the resolved paths for the arguments contain the same values. FileIsInDirectory does not verify whether Directory or FileName actually exist on the local file system. It compares the specified string values only.

Use DirectoryExists or DirectoryExistsUTF8 to determine whether a path exists on the local file system.

Use FileExists or FileExistsUTF8 to determine whether a file exists on the local file system.

Example:

// uses FileUtil;
// ...
// var
//   sDir, sFile: String;
//   bResult: Boolean;
// ...
// neither the file nor the directory exist on the file system
sDir := 'q:\bogus\path\';
sFile := 'q:\bogus\path\..\path\filename.ext';
bResult := FileIsInDirectory(sFile, sDir);

ShowMessage('File: ' + sFile + LineEnding +
  'is in Directory: ' + sDir + '?' + LineEnding +
  'FileIsInDirectory() result is: ' + bResult.ToString(TUseBoolStrs.True) + '.');

See also

• FileIsInPath
• CleanAndExpandFilename
• CleanAndExpandDirectory
• CompareFileNames