About DeviceContext (DC)

Question

0.00/5 (No votes)

See more:

Hi,

I have a question about memory device context (MemDC),
When creating a memory DC using CreateCompatibleDC(...) & CreateBitmap(...), the actual data (bitmap associated with DC) where is saved,
in the main memory OR video card memory? and if in the main memory the raster operations (such drawing functions) are doing by CPU or GPU?

Thanks a lot

Posted 21-May-14 19:08pm

Javad Taheri (drjackool)

Updated 21-May-14 19:15pm

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Answer 1 · 2014-05-21T22:49:00

Solution 1

A memory DC is just that, a piece of memory. It is only when you copy that to an actual device DC that the video card and GPU become involved.

Posted 21-May-14 22:49pm

Richard MacCutchan

CPallini · Answer 2 · 2014-05-21T22:59:00

Solution 2

Some info here: "Comparing Direct2D and GDI Hardware Acceleration"[^].

Posted 21-May-14 22:59pm

CPallini