| Description |
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The ChangeFileExt function changes the Extension value of a file FileName, returning the new value as a string.
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| Related commands |
| ExtractFileExt |
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Extracts the extension part of a full file name |
| ProcessPath |
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Split a drive/path/filename string into its constituent parts |
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| Example code : Renaming Unit1.dcu to Unit1.old |
// Full Unit code.
// -----------------------------------------------------------
// You must store this code in a unit called Unit1 with a form
// called Form1 that has an OnCreate event called FormCreate.
unit Unit1;
interface
uses
SysUtils, // Unit containing the ChangeFileExt command
Forms, Dialogs;
type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm} // Include form definitions
procedure TForm1.FormCreate(Sender: TObject);
var
oldName, newName : string;
begin
// Try to rename the current Unit1.dcu to Uni1.old
oldName := 'Unit1.dcu';
newName := ChangeFileExt(oldName, '.new');
// Show the old and new values
ShowMessage('Old name = '+oldName);
ShowMessage('New name = '+newName);
end;
end.
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| Hide full unit code |
Old name = Unit1.dcu
New name = Unit1.new
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