C / C++ / MFC

Re: used the same one but popup menu not disappear if I click on some other window

1-Jun-06 20:47

See Minimize your app to systray in 8 easy steps[^] maybe it is some helpful to you

whitesky

zahid_ash1-Jun-06 20:54

zahid_ash

1-Jun-06 20:54

Yes I used the same one. the popup menu apeared on clicking the tray icon do not disappear if i click on some other window. It remains there, and to make it disappear I have to select something from menu.

I want to hide the popup menu when I click on some other menu or in some other area

Regards.

Re: Icon added to system trat but popup menu not disappear if I click somewhere else [modified]

Viorel.1-Jun-06 21:52

Viorel.

1-Jun-06 21:52

MSDN library mentions this problem in the description of ::TrackPopupMenu function. In order to solve it, there is a recomendation to make the window foreground before TrackPopupMenu, and then to post a benign message immediately after TrackPopupMenu:

::SetForegroundWindow(hwnd);
::TrackPopupMenu(...);
::PostMessage(hwnd, WM_NULL, 0, 0);

Or, in case of MFC, inside a member:

SetForegroundWindow();
TrackPopupMenu(...);
PostMessage(WM_NULL);

Hope this will help.

-- modified at 10:11 Friday 2nd June, 2006

program executing error

Y_Kaushik1-Jun-06 20:31

Y_Kaushik

1-Jun-06 20:31

hai all's

whenever i execute the program in VC++(MFC(exe)) project the i have find
the error (could not execut the program:Invalid directory(win 32 error(267)
and this error is always for all my programs .

plz tell me where i am wrong.

mailing me
Yogi

Re: program executing error

_AnsHUMAN_ 1-Jun-06 20:37

_AnsHUMAN_

1-Jun-06 20:37

Giving it just a try....
Its not clear from your posts what context are you working in.
Try and check the settings for the project . May be the path of the exe is not mapping currently. Go to project>settings>Debug>(set the path of the exe manually).
Does this help you?

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: program executing error

toxcct1-Jun-06 21:50

toxcct

1-Jun-06 21:50

STOP IT, NOW !!!! Mad | :mad:

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

FFMPEG(Libavcodec DLL)+VC++

RahulOP1-Jun-06 20:29

1-Jun-06 20:29

I am able to load(AfxLoadLibrary) the libavcodec dll in a VC7 Dialog based application. However I dont know how to call the functions within this DLL to encode/decode video. Has anybody done anything of this sort?

Hamid_RT1-Jun-06 20:37

1-Jun-06 20:37

GetProcAddress for get the address of a function

whitesky

RahulOP1-Jun-06 21:08

1-Jun-06 21:08

Ok, the def file says "avcodec_register_all @ 97 ; " so how would I use this with GetProcAddress?

"GetProcAddress(hModule, avcodec_register_all);" ??

Some kinda code snippets would be really helpful

Thanks anyway for replying

Hamid_RT1-Jun-06 21:31

Re: FFMPEG(Libavcodec DLL)+VC++ [modified]

1-Jun-06 21:31

I can explain for you how to use but i think better that you see this link Step by Step: Calling C++ DLLs from VC++ and[^]

whitesky

RahulOP1-Jun-06 22:43

Re: FFMPEG(Libavcodec DLL)+VC++ [modified]

1-Jun-06 22:43

I have already had a look at that. But am unsure about the typedef thingy. Plus i am using the AfxLoadLibrary option.
This is what I am trying and it builds and executes fine

HMODULE hmodule;<br />
hmodule = AfxLoadLibrary("libavcodec.dll");<br />
    if (!AfxLoadLibrary(_T("libavcodec.dll")))<br />
       // return 1;<br />
	   AfxMessageBox("failed to load");<br />
	typedef void * (__stdcall *avcodec_register_all)();<br />
GetProcAddress(hmodule,"avcodec_register_all");<br />
void * objptr= avcodec_register_all();

I know this will sound dumb but if I wanted to encode video, I will have to typedef every function that I call fm the DLL?
-- modified at 4:45 Friday 2nd June, 2006

Hamid_RT2-Jun-06 1:10

Re: FFMPEG(Libavcodec DLL)+VC++ [modified]

2-Jun-06 1:10

i write a sample i hope that helpful to you

<br />
/*   in dll file<br />
extern "C" BSTR FAR PASCAL EXPORT TestFunction(HWND hWnd,TCHAR lpt[50])<br />
{<br />
AFX_MANAGE_STATE(AfxGetStaticModuleState());<br />
BSTR		 Returnbstr;<br />
...<br />
...<br />
return Returnbstr;<br />
}<br />
*/<br />
<br />
//////////////Include file//////////////////<br />
typedef BSTR FAR  (WINAPI *TESTFUNCTION)(HWND hWnd,TCHAR lpt[50]);<br />
	TESTFUNCTION		    m_TestFunction;<br />
<br />
/////////////Cpp file///////////////////////////////<br />
	LibraryDll=LoadLibrary("Testdll.dll");<br />
<br />
	m_TestFunction=(TESTFUNCTION)GetProcAddress(LibraryDll,"TestFunction");//function in dll file<br />
<br />
	m_TestFunction(pWnd->m_hWnd,NULL);

whitesky

RahulOP4-Jun-06 18:36

4-Jun-06 18:36

Thank you for the code Smile | :)

But i am looking for code specific to FFMPEG and the libavcodec dll. Sigh | :sigh:

Any takers??

Hamid_RT4-Jun-06 22:24

4-Jun-06 22:24

I write one example for you but i dont know whats your dll(exactly) Smile | :)

whitesky

RahulOP4-Jun-06 22:38

4-Jun-06 22:38

You can learn more about FFMPEG from http://ffmpeg.mplayerhq.hu/[^]

Basically its an Audio/Video encoding/decoding thingy (OpenSource).You get dlls when you build ffmpeg and I am trying to use these DLLs in my VC++ application.Unfortunately, since its OpenSource, there isnt much documentation available online. Thanks for all your help though Big Grin | :-D

Hamid_RT4-Jun-06 22:54

4-Jun-06 22:54

Thanks for link Smile | :)

but where your dll that has problem(exactly address)
and if you need to decode and encode you can see codeproject examples

whitesky

RahulOP4-Jun-06 22:57

4-Jun-06 22:57

My dll has no problem. its in trying to use the functions of the dll that I get stuck . I dont know how to do it Frown | :-(

Sorry for not having made that clear sooner.

Hamid_RT4-Jun-06 23:02

4-Jun-06 23:02

ohh yes.ok wheres this dll file and also documets it

whitesky

RahulOP4-Jun-06 23:12

Re: Device context trouble

4-Jun-06 23:12

You can download FFMPEG from http://ffmpeg.mplayerhq.hu/download.html[^]. It can be built using MINGW and MinSys
Instructions here
http://soenkerohde.com/tutorials/ffmpeg/

Or you can directly download a pre-built version of FFMPEG that has the dlls and the exe ready. The dll also has a def file but that's hardly helped since it mentions what functions are there but not the paramters Frown | :-(

Device context trouble

shivditya1-Jun-06 20:29

shivditya

1-Jun-06 20:29

I am stuck in device context trouble.
Right now I am conclusion it will be worth to get directly
desktop dc for generic class.
If any body can suggest me way for passing device context to generic class
through thread function or getting desktop dc directly for drawing in generic class.

Here simulate is generic class and the nextpos function is doing lot of drawing stuff.and it needs device context,I have developed SDI application.
and used CView as base.

UINT CMy5CYLINDERView::ThreadFunc(LPVOID pParam)
{
CWnd *cwnd,*cwnd1;
cwnd1 = cwnd->GetWindow(1);
CDC* pDC = cwnd1->GetDC();
simulate* eng = (simulate*)pParam;
eng->nextpos(pDC);
// eng->nextpos(pszWindow);
return 0;

}

void CMy5CYLINDERView::support()
{
for(int ii = 0;ii <= 3;ii++)
{
x[ii] = AfxBeginThread(ThreadFunc,(LPVOID)&engine[ii]);

}
}.

|| ART OF LIVING ||

Hamid_RT1-Jun-06 20:43