Timer more precise than SetTimer

[ahmd]

I'm curious if there's a timer function more precise than calling SetTimer and then processing WM_TIMER events? I call it at a frequency of 100ms and sometimes those WM_TIMER messages get delayed on older systems.

[Skizmo]

Multimedia timers are more precise.

[sunny_sz]

Reference Creating a reliable timer .

[OReubens]

That's how regular timers work, the interval you set is a lower limit, but not a precise interval. If the system is busy, a WM_TIMER can be delayed for several seconds, nomatter how low you've set the interval, and even regardless of the priority the thread/process are running on.

Multimediatimers are more precise both in allowing finer granularity as well as guaranteeing the timer procedure will get called closer to the set intervals.
But you are restricted in what you can safely do from a multimedia timer procedure.

[ahmd]

Thank you everyone.

But you are restricted in what you can safely do from a multimedia timer procedure.

What do you mean by that?