TimeProc - Win32 Multimedia Programmer's Reference

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TimeProc

The TimeProc function callback function that is called once upon the expiration of a single event or periodically upon the expiration of periodic events.

oid CALLBACK TimeProc(

UINT uID,
UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2
);

TimeProc is a placeholder for the application-defined function name.

Parameters
uID

Identifier of the timer event. This identifier was returned by the timeSetEvent function when the timer event was set up.

uMsg

Reserved; do not use.

dwUser

User instance data supplied to the dwUser parameter of timeSetEvent.

dw1 and dw2

Reserved; do not use.

Return Values
This function does not return a value.

Remarks
Applications should not call any system-defined functions from inside a callback function, except for PostMessage, timeGetSystemTime, timeGetTime, timeSetEvent, timeKillEvent, midiOutShortMsg, midiOutLongMsg, and OutputDebugString.

See Also
timeSetEvent, PostMessage, timeGetSystemTime, timeGetTime, timeKillEvent, midiOutShortMsg, midiOutLongMsg, OutputDebugString

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