g_spawn_async (
  const gchar* working_directory,
  gchar** argv,
  gchar** envp,
  GSpawnFlags flags,
  GSpawnChildSetupFunc child_setup,
  gpointer user_data,
  GPid* child_pid,
  GError** error


Executes a child program asynchronously.

See g_spawn_async_with_pipes() for a full description; this function simply calls the g_spawn_async_with_pipes() without any pipes.

You should call g_spawn_close_pid() on the returned child process reference when you don’t need it any more.

If you are writing a GTK application, and the program you are spawning is a graphical application too, then to ensure that the spawned program opens its windows on the right screen, you may want to use GdkAppLaunchContext, GAppLaunchContext, or set the DISPLAY environment variable.

Note that the returned child_pid on Windows is a handle to the child process and not its identifier. Process handles and process identifiers are different concepts on Windows.


working_directory const gchar*

Child’s current working directory, or NULL to inherit parent’s.

 The argument can be NULL.
 The data is owned by the caller of the function.
 The string is a file system path, using the OS encoding.
argv An array of filename
child's argument vector.
 The data is owned by the caller of the function.
envp An array of filename
child's environment, or `NULL` to inherit parent's.
 The argument can be NULL.
 The data is owned by the caller of the function.
flags GSpawnFlags

Flags from GSpawnFlags.

child_setup GSpawnChildSetupFunc

Function to run in the child just before exec()

user_data gpointer

User data for child_setup.

child_pid GPid

Return location for child process reference, or NULL.

 The argument will be set by the function.
 The argument can be NULL.
 The called function takes ownership of the data, and is responsible for freeing it.
error GError **
  The return location for a GError*, or NULL.

Return value

Returns: gboolean

TRUE on success, FALSE if error is set.