Mega Code Archive
Extractfiledrive - extracts the drive part of a full file name sysutils unit
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function ExtractFileDrive ( const FullFileName : string ) : string;
Description
The ExtractFileDrive function extracts from FullFileName the drive substring.
If the file name does not contain a drive prefix, then an empty string is returned.
Related commands
ChangeFileExt Change the extension part of a file name
ExtractFileDir Extracts the dir 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
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