webbrowser? how to Release the memory? "Release()" don't work! who can help me ?

Question

0.00/5 (No votes)

See more:

hi everyone.

i use webbrowser to load a html many times,than i find that when i Destroy my windows,the memory do not decrease.

My English is bad, please forgive me!

if you can understand, please help me.

i ask many people,they think this is a bug of the Microsoft,i do not think so.

maybe, i do not find a right way.

my program run on window7 and IE8.

im_axwindow_ui is a CAxWindow class.

my Key code:

C++

im_axwindow_  ui m_scroll_ui;

CRect _rc;
GetClientRect(&_rc);

m_scroll_ui.Create(m_hWnd, CRect(0,27,_rc.right,_rc.bottom),NULL,WS_CHILD|WS_VISIBLE|WS_CLIPSIBLINGS|WS_CLIPCHILDREN|WS_VSCROLL,NULL);

// IDC_HISTORY_HTML  is my file end with .html,the html have some javascript code
// will load some Picture.
m_scroll_ui.CreateControl(IDC_HISTORY_HTML);
//here,my program possess the memory about 300M

m_scroll_ui->QueryControl(&m_pWeb2);
DispEventAdvise(m_pWeb2);
m_pWeb2->put_Silent(VARIANT_TRUE); 
pHost = new CImpIDocHostUI(this); 
pHost->changeStyle(_style);
pHost->AddRef();   
SetExternalUIHandler(pHost); 
DispEventUnadvise ( m_pWeb2 );

//when i destroy my window,i will release iwebbrowser2指针
//the memory do not decrease.
m_pWeb2.Release();

Posted 13-Mar-12 1:55am

lin98666521

Updated 13-Mar-12 3:15am

v4

Add a Solution

Comments

Maximilien 13-Mar-12 9:08am

too much code, please try to edit to post only significative code

lin98666521 13-Mar-12 9:17am

thank you for your replication i Improve question,i hope you can help me.

[no name] 13-Mar-12 10:03am

How are you checking available memory?

lin98666521 13-Mar-12 10:09am

i checking available memory by taskhost.
i destroy my window,Half an hour later the memory do not change.

E.F. Nijboer 13-Mar-12 10:51am

It would be better to check it out using the debugger because the memory manager implementation might simply not release it due to some threshold for example. What happens if you re-open the window in your application? If no extra memory is allocated, it might indicate this situation.

lin98666521 13-Mar-12 21:37pm

now,if you re-open the window in my application no extra memory is allocated,but i want to Release the memory Immediately, How should I do?

[no name] 13-Mar-12 23:31pm

The test you are doing is unreliable. Assuming you are using VS 2010 the way to find memory leaks is to use something like Visual Leak Detector.

lin98666521 14-Mar-12 0:46am

hi,thank you for your help very much.
Although i do not find the way to Release the memory Immediately,but i find a way to solute my trouble. before i close my window,i use the func named "Navigate" to open a blank url,than webbrowser will release the IE cache. maybe the way just can solute my Problem.

thanks again!

1 solution

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)

Pablo Aliskevicius · Accepted Answer · 2012-03-13T21:56:00

Solution 2

C++

::CoFreeUnusedLibraries();

Hope this helps,
Pablo.

Posted 13-Mar-12 21:56pm

Pablo Aliskevicius