Assigning, Opening, and Closing Files

What is translated > File Input and Output > Assigning, Opening, and Closing Files

AssignFile associates a file variable with a file name. It does not open the file.

AssignFile(myFile, "Test.txt");

Rewrite creates or replaces a file and opens it for writing.

Rewrite(myFile);

For an untyped file, an optional record size can be supplied:

Rewrite(myFile, 1);

Append opens a text file and positions the writer at the end of the file.

Append(myFile);

Reset opens an existing file for reading.

Reset(myFile);

For typed and untyped files, Reset uses the current Delphi FileMode setting to determine the access and sharing mode.

CloseFile closes the current reader, writer, or stream.

CloseFile(myFile);

CloseFile preserves the file name assigned by AssignFile. The same file variable can therefore be reopened:

AssignFile(myFile, "Test.txt");

Rewrite(myFile);

CloseFile(myFile);

Reset(myFile);

CloseFile(myFile);

Rename changes the physical file name and updates the name stored in the file variable.

Rename(myFile, "NewName.txt");

The file must be closed before Rename is called.

Delphi2CSharp does not generate a C# using block for Delphi file operations. This avoids the need to locate a matching CloseFile call while translating the source.

This page belongs to the Delphi2C# Documentation