In MQL4 reference :
The file must be located
in terminal_directory\Sounds or its sub-directory. Only WAV files are
Call of PlaySound() with
NULL parameter stops playback.
But in I cant' find terminal_directory\Sounds directory in my PC , as picture below,
please help me to find the sound file,thanks.
But they can be in other places than what you wrote. It depends of where the user install MT4.
What you give is the default path on a 64 bits system.
Dear all :
Thanks a lot ,
I have sloved the problem.