AssignFile

procedure AssignFile(var FileHandle TextFile; const FileName string);

It is used to associate a file variable with a file name, enabling the program to interact with a specific file.
The `AssignFile` function creates a file variable and associates it with the specified file name.
The function takes two parameters: the first parameter is the variable corresponding to the created `TextFile` object, and the second parameter is the name of the file to be created.

In both cases, when the file is opened by Append, Reset or ReWrite, it is assumed to be in the current directory.

In the Clomosy Learn application, the file path should be specified as follows for saving files within the project directory.

AssignFile(FileHandle, Clomosy.AppFilesPath+'TaskList.txt');

Example
TRObject Syntax

var
  myFile : TextFile;

{
  // Try to open the Test.txt file for writing to
  AssignFile(myFile, Clomosy.AppFilesPath+'TaskList.txt');
  ReWrite(myFile);
  
  ShowMessage('The file is added to the directory where the exe is located.'); 
  
  // Write a couple of well known words to this file
  WriteLn(myFile, 'Task 1');
  WriteLn(myFile, 'Task 2');
  ShowMessage('Lines have been added to the file.'); 
  // Close the file
  CloseFile(myFile);
}

Base Syntax

var
  myFile : TextFile;

begin
  // Try to open the Test.txt file for writing to
  AssignFile(myFile, Clomosy.AppFilesPath+'TaskList.txt');
  ReWrite(myFile);
  
  ShowMessage('The file is added to the directory where the exe is located.'); 
  
  // Write a couple of well known words to this file
  WriteLn(myFile, 'Task 1');
  WriteLn(myFile, 'Task 2');
  ShowMessage('Lines have been added to the file.'); 
  // Close the file
  CloseFile(myFile);
end;

Output:
After the file has been saved, it appears as follows.

See Also

• File Handling