nobody know?
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...
WWer:
Usethenand then write to the end of this file any data that you want...
you donot understand my question,i know the way
Usethenand then write to the end of this file any data that you want...
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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?