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directxscreenshotgdidirect3dscreen-capture

What is the most efficent way to screen capture? Screen capturing using DirectX?

I've known about screen capture using Device Contexts and GDI, since windows XP. Is there a better way (i.e. DirectX?) now that the desktop is mostly Direct3D.

How can I screen capture using DirectX?

I want to know the most efficent way to user-mode screen capture. For a tech support program that needs frequent screen scrapes.

UPDATE: I don't want to resort to using kernel mode drivers.

Solution

  • Based upon vcsjones answer (above). See CodeProject http://www.codeproject.com/KB/dialog/screencap.aspx#And%20The%20DirectX%20way%20of%20doing%20it%20