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Yes, you are right.
I changed it to LockFlags.ReadOnly with measurable effect though.

I noticed that i measured the time it takes to copy the screenshot the wrong way and now i get different results:

It's about 0 ms mostly with some peaks were it is ~16 ms but just for 1 frame. Then 0 ms again.

What surprises me is the fact that this is the same regardless if i have 1080i or SD TV or i am grabbing the whole screen or just a small portion of it.

How can that be?

[QUOTE="gemx, post: 561261, member: 26324"] Yes, you are right. I changed it to LockFlags.ReadOnly with measurable effect though. I noticed that i measured the time it takes to copy the screenshot the wrong way and now i get different results: It's about 0 ms mostly with some peaks were it is ~16 ms but just for 1 frame. Then 0 ms again. What surprises me is the fact that this is the same regardless if i have 1080i or SD TV or i am grabbing the whole screen or just a small portion of it. How can that be? [/QUOTE]

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