APPEND - FreeBASIC Wiki Manual | FBWiki

filename
encoding_type
lock_type
filenum

A file mode used with Open to open a text file for writing.

This mode is used to add text to an existing file with Print #, or comma separated values with Write#.

Text files can't be simultaneously read and written in FreeBASIC, so if both functions are required on the same file, it must be opened twice.

filename must be a string expression resulting in a legal file name in the target OS, without wildcards. The file will be sought for in the present directory, unless the filename contains a path . If the file does not exist, it is created. The pointer is set after the last character of the file.

Encoding_type indicates the Unicode Encoding of the file, so characters are correctly read. If omitted, "ascii" encoding is defaulted. Only little endian character encodings are supported at the moment.

• "utf8"
• "utf16"
• "utf32"
• "ascii" (the default)

Lock_type indicates the way the file is locked for other processes, it is one of:

• Read - the file can be opened simultaneously by other processes, but not for reading
• Write - the file can be opened simultaneously by other processes, but not for writing
• Read Write - the file cannot be opened simultaneously by other processes (the default)

filenum Is a valid FreeBASIC file number (in the range 1..255) not being used for any other file presently open. The file number identifies the file for the rest of file operations. A free file number can be found using the Freefile function.