Forum Programmation.autre using wxProcess (wxwindows)

Hello, i have some problems to do a system call from wxwidgets.

in fact i need to start a media player from a wxwindows application, and then pass the name of the files to play. i am trying to pass the names of the files by using the wxOutputStream of the wxProcess class (GetOutputStream()) but it is not working. it compiles but does not execute the commands .

does someone have any idea to solve my problem?