A timeout with microsecond precision?

[Yueh-Wei Hu <ywhu iii org tw>]

I noticed that g_timeout_add() using an argument with millisecond
precision.

However, I want to specify an callback function to be called every 30
microseconds.

Does glib offer this facility?
Or how could I achieve this in gtk?

I also noticed that Qt offers its timer with microsecond precision. Why
does glib offer one with millisecond precision?

Thanks for any replies.

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Wei <ywhu iii org tw>
http://www.cis.nctu.edu.tw/~is84018/