function ExtractFileDir ( const FullFileName : string ) : string;
Description
The ExtractFileDir function extracts from FullFileName the directory substring.
This is the part of the full file name up to but not including the final \ before the file name.
Related commands
ChangeFileExt Change the extension part of a file name
ExtractFileDrive Extracts the drive part of a full file name
ExtractFileExt Extracts the extension part of a full file name
ExtractFileName Extracts the name part of a full file name
ExtractFilePath Extracts the path part of a full file name
ProcessPath Split a drive/path/filename string into its constituent parts
Example code : Extract all of the parts of a full file name
var
fullFileName : string;
begin
// Set up a full file name with drive and path
fullFileName := 'C:\Program Files\Borland\Delphi7\Projects\Unit1.dcu';
// Show the component parts of this full name
ShowMessage('Drive = '+ExtractFileDrive (fullFileName));
ShowMessage('Dir = '+ExtractFileDir (fullFileName));
ShowMessage('Path = '+ExtractFilePath (fullFileName));
ShowMessage('Name = '+ExtractFileName (fullFileName));
ShowMessage('Ext = '+ExtractFileExt (fullFileName));
end;
Show full unit code
Drive = C:
Dir = C:\Program Files\Borland\Delphi7\Projects
Path = C:\Program Files\Borland\Delphi7\Projects\
Name = Unit1.dcu
Ext = .dcu