mciPlayFile Parameter - ulFlags

ulFlags (ULONG) - input

MCI_OWNERISPARENT

Indicates that the owner window should be used as the parent window for any default window that is created. If this flag is passed to a device that does not support a parent window, an error is returned.
MCI_STOPACTIVE
Indicates that any currently active command issued by either mciPlayFile or mciPlayResource should be stopped.
MCI_ASYNC
Indicates that the command should be processed asynchronously. A rendezvous command will not be done.
MCI_ASYNCRENDEZVOUS
Indicates that the command should proceed asynchronously. A rendezvous command will be done.
MCI_RENDEZVOUS
Indicates that the call should wait for a currently pending asynchronous command to complete.

• If no command is pending, then it returns immediately.

• If an asynchronous command is not pending, this function will return immediately. This flag indicates that the command should wait until a pending asynchronous play command completes and then return.

• If a synchronous (default) play command is pending, this command should return immediately with an MCIERR_NO_ASYNC_PLAY_ACTIVE.

• If another MCI_RENDEZVOUS command is pending, this command should return immediately with an MCIERR_NO_ASYNC_PLAY_ACTIVE.

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