How to clear memory in WPF

Question

0.00/5 (No votes)

See more:

I'm doing a project and I'm capturing frames from kinect and do some real-time process on them, I need to display bitmaps so I'm converting them to bmapsource and pass to image.source: Bitmap bmap = new Bitmap(640, 480, System.Drawing.Imaging.PixelFormat.Format24bppRgb); BitmapSource bmapSource= System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bmap.GetHbitmap(),IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions()); image.source = bmapSource;

But as I'm processing 15FPS after 2 minute I get the error "Out of memory" for this part. Is there anyway to clear the memory after each process? or isthere any other way to display the bmap in wpf?

Thanks in advance :)

Posted 25-Dec-13 21:45pm

niloufar.M

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)

Uday P.Singh · Answer 1 · 2013-12-25T21:55:00

Solution 1

Try this:

Local image caching with custom Image control in WPF[^]

hope it helps :)

Posted 25-Dec-13 21:55pm

Uday P.Singh

Xiao Ling · Answer 2 · 2013-12-26T20:45:00

Hi Niloufar
What a coincidence. Nice to see your same question again on codeproject. I've answered your question on StackOverflow :). so I just post it here again. But this time, I'll separate my code block:

// declare in your class
            [System.Runtime.InteropServices.DllImport("gdi32.dll")]
            public static extern bool DeleteObject(IntPtr hObject);
            IntPtr bmp;

// your frame loop
{
                if (bmp != null)
                {
                    DeleteObject(bmp);
                }
                Bitmap bmap = new Bitmap(640, 480, System.Drawing.Imaging.PixelFormat
                                                         .Format24bppRgb);
                bmp = bmap.GetHbitmap();
                BitmapSource bmapSource = System.Windows.Interop.Imaging.
                  CreateBitmapSourceFromHBitmap(bmp, IntPtr.Zero, Int32Rect.Empty,
                                                BitmapSizeOptions.FromEmptyOptions());
                bmap.Dispose();
                bmap = null;

                image.Source = bmapSource;
}