Example code : Try to delete a file twice
var
fileName : string;
myFile : TextFile;
data : string;
begin
// Try to open a text file for writing to
fileName := 'Test.txt';
AssignFile(myFile, fileName);
ReWrite(myFile);
// Write to the file
Write(myFile, 'Hello World');
// Close the file
CloseFile(myFile);
// Reopen the file in read mode
Reset(myFile);
// Display the file contents
while not Eof(myFile) do
begin
ReadLn(myFile, data);
ShowMessage(data);
end;
// Close the file for the last time
CloseFile(myFile);
// Now delete the file
if deletefile(fileName)
then ShowMessage(fileName+' deleted OK')
else ShowMessage(fileName+' not deleted');
// Try to delete the file again
if deletefile(fileName)
then ShowMessage(fileName+' deleted OK again!')
else ShowMessage(fileName+' not deleted, error = '+
IntToStr(GetLastError));
end;