# \#msmf

**URL:** https://forum.opencv.org/tag/msmf/433.md

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## [The MSMF backend is slow to acquire the initial frame](https://forum.opencv.org/t/the-msmf-backend-is-slow-to-acquire-the-initial-frame/24121)

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**Author:** [@sunny\_ho](https://forum.opencv.org/u/sunny_ho)\
**Replies:** 3\
**Last updated:** [October 15, 2025, 9:18am UTC](https://forum.opencv.org/t/the-msmf-backend-is-slow-to-acquire-the-initial-frame/24121 "2025-10-15T09:18:09Z")

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"The MSMF backend is slow to acquire the initial frame. # -\*- coding: UTF-8 -\*- import cv2 import time import datetime print("msmf test") t1=datetime.datetime.now() cap = cv2.VideoCapture(0) ret,frame=cap.read() t2=dat…

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## [Repeated \_COM error with VidCap in vs17](https://forum.opencv.org/t/repeated-com-error-with-vidcap-in-vs17/23646)

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**Author:** [@DavidM](https://forum.opencv.org/u/DavidM)\
**Replies:** 6\
**Last updated:** [August 8, 2025, 11:00am UTC](https://forum.opencv.org/t/repeated-com-error-with-vidcap-in-vs17/23646 "2025-08-08T11:00:52Z")

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I have upgraded to v4.12.0 (from v3 after several years break - new machine) and although everything still appears to work ok, I get this exception repeated many times when executing frame capture and/or imshow functions…