|
timeSetEvent
The timeSetEvent function starts a specified timer event. The multimedia timer runs in its own
thread. After the event is activated, it calls the specified callback function.
MMRESULT timeSetEvent(
UINT uDelay,
|
| UINT uResolution,
|
| LPTIMECALLBACK lpTimeProc,
|
| DWORD dwUser,
|
| UINT fuEvent
|
| );
|
|
Parameters
uDelay
Event delay, in milliseconds. If this value is not in the range of the minimum
and maximum event delays supported by the timer, the function returns an error.
uResolution
Resolution of the timer event, in milliseconds. The resolution increases with
smaller values; a resolution of 0 indicates periodic events should occur with
the greatest possible accuracy. To reduce system overhead, however, you should
use the maximum value appropriate for your application.
lpTimeProc
Address of a callback function that is called once upon expiration of a single
event or periodically upon expiration of periodic events.
dwUser
User-supplied callback data.
fuEvent
Timer event type. The following values are defined:
TIME_ONESHOT
Event occurs once, after uDelay milliseconds.
TIME_PERIODIC
Event occurs every uDelay milliseconds.
Return Values
Returns an identifier for the timer event if successful or an error otherwise.
This function returns NULL if it fails and the timer event was not created.
(This identifier is also passed to the callback function.)
Remarks
Each call to timeSetEvent for periodic timer events must be matched with a call to the timeKillEvent function.
See Also
timeKillEvent
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
More Online Helps
Win32 Programmer's Reference (win32.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
|
