Using C# with C DLL for callback, can't get better than 16FPS framegrab rate, why? -



Using C# with C DLL for callback, can't get better than 16FPS framegrab rate, why? -

i have application in c# interfaces usb camera. it's been working fine except fact have not been able accomplish improve 16 frames-per-second. i'm using vfw, , 'c' callback (the callback part of dll) per wm_cap_grab_frame_nostop message, , i've found if nil in callback, unable decent frame rate (16fps max).

i thought using interface give me improve performance other alternatives (directshow example) because of simplicity , low-level connection driver; i'm origin wonder if that's true. have insight on this?

let me hazard guess...

are using system.timers.timer chance? or, c portion of programme using windows timer? if do, limited resolution might cause of problem.

c# dll camera

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