ltmfPlay_Notify Constants

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typedef enum _ltmfPlay_Notify
{
   ltmfPlay_Notify_StateChanged,
   ltmfPlay_Notify_Error,
   ltmfPlay_Notify_TrackingPositionChanged,
   ltmfPlay_Notify_TrackingSelectionChanged,
} ltmfPlay_Notify;

The ltmfPlay_Notify constants define the WPARAM parameter used in notification messages.

Constant	Description
ltmfPlay_Notify_StateChanged	[0] Indicates that the play objects state has changed. The high order 32 bits of LPARAM contain the previous state. The low order 32 bits of LPARAM contain the current state.
ltmfPlay_Notify_Error	[1] Indicates a playback error has occurred. The message LPARAM value contains the HRESULT error code.
ltmfPlay_Notify_TrackingPositionChanged	[2] Indicates that the current tracking position has changed. The LPARAM value contains the new tracking position.
ltnmmPlay_Notify_TrackingSelectionChanged	[3] Indicates that the current tracking selection has changed. The high order 32 bits of LPARAM contain the previous ending position. The low order 32 bits of LPARAM contain the starting position.