MsgFilterHook Parameter - msgf

msgf (ULONG) - input

Context in which the hook has been called.

MSGF_DIALOGBOX

Dialog-box mode loop.
MSGF_TRACK
Window-movement and size tracking. When this hook is used the TRACKINFO structure specified the ptiTrackinfo parameter of the WinTrackRect function is updated to give the current state before the hook is called. Only the parameters are updated.
MSGF_DRAG
Direct manipulation mode loop.
MSGF_DDEPOSTMSG
DDE post message mode loop.

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