C / C++ / MFC

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

10-Jun-13 23:39

Creating webbrowser as below

XML

hret=CoCreateInstance(clsid,NULL,CLSCTX_ALL,IID_IUnknown
        ,reinterpret_cast<void**>(&m_pUnknown));

hret=m_pUnknown->QueryInterface(IID_IWebBrowser2,(PVOID *)&m_pBrowser);
    ASSERT(SUCCEEDED(hret));

but when i say
HRESULT hret = m_pBrowser->Navigate2(varURL,&noArg,&noArg,&noArg,&noArg);
its opening new IE window on WIn7. But in Xp sys its not happening like that. I dont want to open new IE window

Any one has any idea why it is opening on new IE window on Win7

Richard MacCutchan11-Jun-13 2:45

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

11-Jun-13 2:45

It's quite possible (and not unknown) for later versions to contain stricter interpretation of optional parameters. The documentation[^] shows how to set the required behaviour.

Use the best guess

narasingubhanu18-Jun-13 22:20

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

18-Jun-13 22:20

I tried a lot on this but couldn't able to resolve this
Can any one help?

Richard MacCutchan18-Jun-13 22:51

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

18-Jun-13 22:51

narasingubhanu wrote:
I tried a lot on this but couldn't able to resolve this

Tried what, and what results did you get? Please don't expect people to be able to guess what you have done.

Use the best guess

narasingubhanu18-Jun-13 23:23

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

18-Jun-13 23:23

HRESULT hret = m_pBrowser->Navigate2(varURL,&varFlag,&vFrame,&noArg,&noArg);
I passed browser constants and frame also but still its opening in new window and if i call any browser function after that its crashing
ex:m_pBrowser->get_Busy(&bBusyFlag); //crash application

Richard MacCutchan18-Jun-13 23:33

Re: IWebBrowser2::Navigate2 problem with IE8 on Win7

18-Jun-13 23:33

You need to use your debugger to find out why it's crashing.

Use the best guess

narasingubhanu18-Jun-13 23:47

How to increment the slider while video is playing.?

18-Jun-13 23:47

Thanks for suggession.
if you want compelte problem here it is
I am printing htnl doc from url. In xp with out opening new IE browser we will get file save dialog while printing the doc
File save dialog opens at m_pBrowser->ExecWB(OLECMDID_PRINT,OLECMDEXECOPT_DONTPROMPTUSER,&noArg,&noArg);
at this point if you press Alt+tab you can see IE icon.
but in Win 7 directly opening IE window at Navigate2 function

mbatra319-Jun-13 23:48

mbatra31

9-Jun-13 23:48

Hi,

I am working on a project in which I use DirectShow to Play / Pause / Stop the video. I am using progress bar which increments along with the video. Now I want to use Slider bar instead of the progress bar which should increment along with the video. Also user should be able to control the video using slider (move forward / backward). I had used timers in which I am incrementing the progress bar.

How to use Sliders so that while video is playing, slider should increment along with the video showing the progress of the video.

Anybody have any idea or any sample code for the same.?

Regards,
Mbatra

Re: How to increment the slider while video is playing.?

David Crow10-Jun-13 5:53

David Crow

10-Jun-13 5:53

Have you looked at the CSliderCtrl members? I'm seeing SetRange() and SetPos(), both of which look like they'd be part of the solution.

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modified 10-Jun-13 14:44pm.

Re: How to increment the slider while video is playing.?

mbatra3110-Jun-13 19:52

mbatra31

10-Jun-13 19:52

Hi David,

Thanks for the reply.

These functions we can use to update the position of the slider. I
want to make the slider synchronize with the timer and the duration of the video. At any time when user drags the slider forward or backward, the playing video should also move forward or backward and timer value should also be changed.
You can say, I want the functionality similar to YouTube, playing a video and user can move forward or backward. Accordingly the video and the timer changes their values.

Do you have any sample code for the same.?

Regards,
Mbatra

Re: How to increment the slider while video is playing.?

David Crow11-Jun-13 2:50

David Crow

11-Jun-13 2:50

That article I referenced you to earlier shows how to use the IMediaSeeking::SetPositions() method. You'll call this method when handling the TRBN_THUMBPOSCHANGING message.

Re: How to increment the slider while video is playing.?

ThatsAlok11-Jun-13 3:31

ThatsAlok

11-Jun-13 3:31

mbatra31 wrote:
You can say, I want the functionality similar to YouTube, playing a video and user can move forward or backward. Accordingly the video and the timer changes their values.

you can follow this logic

- get total video length in seconds
- create slider based on resulting time
- handle sliderctrl message http://msdn.microsoft.com/en-us/library/ekx9yz55(v=vs.80).aspx[^]
- move your video time line appropriately

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Re: How to increment the slider while video is playing.?

mbatra3111-Jun-13 3:37

mbatra31

11-Jun-13 3:37

Hi,

I have followed the similar points. At point No.3, I want to forward the video in proportion to the slider value. But issue is how to get IMediaSeeking interface reference to the running video. So that I can set the position of the next seek frame.

Regards,
Mbatra

Re: How to increment the slider while video is playing.?

David Crow11-Jun-13 4:28

David Crow

11-Jun-13 4:28

mbatra31 wrote:
But issue is how to get IMediaSeeking interface reference...

In that DirectShow example I referenced you to (several times now), look at the PlayerClass::Initialise() method. It shows how to get references to three different interfaces, IMediaSeeking included.

Reagarding error with ostream

Manoj73909-Jun-13 20:24

Manoj7390

9-Jun-13 20:24

Hi.. I have implemented ECC algorithm in C++ and it is working fine with g++ compiler... I need to apply this program to network simulator - 3. Complier of NS-3 is "./waf", there it is not building and it is giving countless errors mainly regarding "ostream".

there is a line regarding ostream in my header function....---

XML

// ostream handler
               template<int T>
               friend  ostream&    operator<<(ostream& os, const FiniteFieldElement<T>& g)
               {
                   return os << g.i_;
               }

Richard MacCutchan9-Jun-13 21:25

9-Jun-13 21:25

Manoj7390 wrote:
it is giving countless errors

Without the detail of those errors no one can guess what is wrong.

Use the best guess

Manoj73909-Jun-13 21:40

Manoj7390

9-Jun-13 21:40

In the main program i am calling another header function called "FiniteFieldElement.h" function. In that function i have used --

XML

// ostream handler
               template<int T>
               friend  ostream&    operator<<(ostream& os, const FiniteFieldElement<T>& g)
               {
                   return os << g.i_;
               }

I am calling this function and using "ostream" in so many places in main function. I am getting the errors like..

/usr/include/c++/4.6/ostream:493:5: note: template<class _chart,="" class="" _traits=""> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
/usr/include/c++/4.6/ostream:473:5: note: template<class _traits=""> std::basic_ostream<char, _traits="">& std::operator<<(std::basic_ostream<char, _traits="">&, unsigned char)
/usr/include/c++/4.6/ostream:468:5: note: template<class _traits=""> std::basic_ostream<char, _traits="">& std::operator<<(std::basic_ostream<char, _traits="">&, signed char)
/usr/include/c++/4.6/ostream:462:5: note: template<class _traits=""> std::basic_ostream<char, _traits="">& std::operator<<(std::basic_ostream<char, _traits="">&, char)
/usr/include/c++/4.6/ostream:456:5: note: template<class _chart,="" class="" _traits=""> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
/usr/include/c++/4.6/ostream:451:5: note: template<class _chart,="" class="" _traits=""> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)

Richard MacCutchan9-Jun-13 21:49

9-Jun-13 21:49

I'm not sure that

C++

template<int T>

is correct for overloading the << operator. See http://msdn.microsoft.com/en-us/library/1z2f6c2k.aspx[^].

Use the best guess

Manoj73909-Jun-13 22:01

Manoj7390

9-Jun-13 22:01

I think it is not the problem with the code, because i am getting the output with g++ compiler. Now i am using ./waf compiler for NS-3, where i am facing problem. I am not sure ostream is supported by NS-3 because there they use NS_LOG_UNCOND("message") instead of "cout".
I am getting errors where i have used ostream. What do you mean by "ostream" and is it compiler dependent.

Richard MacCutchan9-Jun-13 22:10

9-Jun-13 22:10

Manoj7390 wrote:
What do you mean by "ostream"

I don't mean anything by it, it is part of the standard C++ library. Also, I have no idea what ./waf compiler for NS-3 is, or what features it supports.

Use the best guess

CPallini9-Jun-13 22:47

CPallini

9-Jun-13 22:47

Richard MacCutchan wrote:
I have no idea what ./waf compiler

I suspect it is not even a compiler: waf[^].

Veni, vidi, vici.

Richard MacCutchan9-Jun-13 23:34