Help:file operation

[jianhua296]

i want to add one file's data to another file's end position,how to realize it ?

FileCopy("src_filename",0,"dst_filename",FILE_REWRITE);

this function can only rewrite the second file,but not remain its original data.
if i open the two files and write data step by step ,it's ok .But the source file may has diffent format,so it's very trouble!
using dll? Maybe this is another way,but i donot like it.
how can i do?Does i make some mistakes when using above function?or MQL5 has other standard function to solve this problem?

[jianhua296]

nobody know？

[Nazariy Stapyak]

Use

int file_handle = FileOpen(filename,FILE_READ|FILE_WRITE|FILE_CSV);

then

FileSeek(file_handle,0,SEEK_END);

and then write to the end of this file any data that you want...

[jianhua296]

WWer:
Usethenand then write to the end of this file any data that you want...

you donot understand my question,i know the way