C / C++ / MFC

CAnimateCtrl crashes when going out of scope

31-Aug-06 4:17

first of all, edit your post (don't repost all, use the edit link), and put all your code into <pre></pre> tags, so that we can rean your question more clearly.

use also the < and > buttons for your for loops

TOXCCT >>> GEII power

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

almc31-Aug-06 3:46

almc

31-Aug-06 3:46

Hi there!

I’m trying to use the CAnimateCtrl in a CDialog based class so that I can use it as a kind of CWaitCursor thing, that will show a “Please wait…” message an plays a AVI.
Now, since I would also like to use the “XP Theme”, I’ve defined a “manifest” as a resource, and as a result the AVI file will not play.
In order to make it work, I tried to use a thread as the one in the MSDN sample (CAnimateCtrl::CAnimateCtrl in MFC Library Reference).
The problem is when the CAnimateCtrl is being destroyed it takes too long (?), and it also makes the application crash. The MSDN says that "... If you create the CAnimateCtrl object on the stack, it is destroyed automatically."

Below you can see the most relevant (I think) parts of the code. Can someone please tell me what am I doing wrong?

Thanks in advance.

CWorkingDlg::CWorkingDlg( LPCSTR szLabel, bool bProgress, int nMaxProgress, bool bShowCancel, UINT nIdAVI, CWnd* pParent)
: CDialog(CWorkingDlg::IDD, pParent)
{
m_bCancelState = false;
m_dwThreadId = 0;
m_hThreadAvi = NULL;
m_hEventAvi = NULL;

m_bCancel = bShowCancel;
m_bProgress = bProgress;
m_nMaxProgress = nMaxProgress;

CString strLabel(szLabel);
if(strLabel.IsEmpty())
strLabel = "A processar. Aguarde por favor...";
m_strLabel = strLabel;

if (nIdAVI==0)
nIdAVI=IDR_XX_AVI_RODAS;

m_nAVI=nIdAVI;

EnableModal(pParent);
if(!Create(CWorkingDlg::IDD, pParent))
AfxThrowUserException();

ShowWindow(SW_SHOW);
DispatchMsg();
}

CWorkingDlg::~CWorkingDlg()
{
if (m_hThreadAvi)
{
::PostThreadMessage(m_dwThreadId, WM_STOPCLIP, 0L, 0L);
::WaitForSingleObject(m_hEventAvi, INFINITE);
m_hThreadAvi=NULL;
}

if (m_hEventAvi)
{
::CloseHandle(m_hEventAvi);
m_hEventAvi=NULL;
}

DisableModal(GetParent());
if (GetSafeHwnd())
DestroyWindow();
}

void CWorkingDlg::DispatchMsg()
{
MSG msg;
DWORD dwi=GetTickCount();
while (::PeekMessage(&msg, NULL, 0L, 0L, PM_NOREMOVE))
{
if (::GetMessage(&msg,NULL,0L,0L))
{
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
else
return;

if ((GetTickCount()-dwi)>2000) // 2s
return;
}
}

UINT CWorkingDlg::MyClipThreadProc(LPVOID pParam)
{
AviInfo *pInfo=(AviInfo *)pParam;
CWnd* pParentWnd = CWnd::FromHandle(pInfo->hWndParent);

CRect rc(10,10,100,100);
CWnd *pAvi=pParentWnd->GetDlgItem(IDC_XX_AVI);
if (pAvi)
{
pAvi->GetWindowRect(&rc);
pParentWnd->ScreenToClient(&rc);
}

UINT nIdAVI=pInfo->nIdAvi;
HANDLE hEvent=pInfo->hEvento;
delete pInfo;
pInfo=NULL;

// Create the animation control.
try
{
CAnimateCtrl cAnimCtrl;
if (!cAnimCtrl.Create(WS_CHILD|WS_VISIBLE|ACS_CENTER,
rc, pParentWnd, IDC_XX_AVI))
{
::SetEvent(hEvent);
return false;
}

// Open the AVI file.
if (!cAnimCtrl.Open(nIdAVI))
{
::SetEvent(hEvent);
return false;
}

// Pump message from the queue until the stop play message is received.
MSG msg;
while (GetMessage(&msg, NULL, 0, 0) && (msg.message != WM_STOPCLIP))
{
switch (msg.message)
{
// Start playing from the first frame to the last,
// continuously repeating.
case WM_PLAYCLIP:
if (!cAnimCtrl.Play(0, -1, -1))
return false;
break;
}

::TranslateMessage(&msg);
::DispatchMessage(&msg);
}

cAnimCtrl.Stop();
cAnimCtrl.Close();
}
catch(...)
{
_com_error e(::GetLastError());
TRACE("\n--> Error: %s", e.ErrorMessage());
}

::SetEvent(hEvent);
return true;
}

BOOL CWorkingDlg::OnInitDialog()
{
CDialog::OnInitDialog();

CenterWindow();

m_hEventAvi=::CreateEvent(NULL,TRUE,FALSE,"Event_AVI");

AviInfo *pInfo=new AviInfo;
pInfo->hWndParent=GetSafeHwnd();
pInfo->nIdAvi=m_nAVI;
pInfo->hEvento=m_hEventAvi;

CWinThread *pThread=AfxBeginThread(MyClipThreadProc, pInfo);
if (pThread)
{
m_hThreadAvi=pThread->m_hThread;
m_dwThreadId=pThread->m_nThreadID;
::PostThreadMessage(m_dwThreadId, WM_PLAYCLIP, 0L, 0L);
}
else
delete pInfo;

return TRUE;
}

ALMC

Cedric Moonen31-Aug-06 3:54

Cedric Moonen

31-Aug-06 3:54

Did you use your debugger to see where it crashes exactly ?

Moreover, don't post a large segment of code like that (and also use the pre tag to format it a little bit better so that it's readable).

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

almc31-Aug-06 3:59

almc

31-Aug-06 3:59

Hi,

Sorry about the formating...

The debugger is only showing some assembly, and the call stack is somewhere in the MFC...

Not much help...

ALMC

David Crow31-Aug-06 7:34

David Crow

31-Aug-06 7:34

almc wrote:
Not much help...

So start peeling away little bits of code until you are left with only what's necessary to reproduce the problem.

"Talent without discipline is like an octopus on roller skates. There's plenty of movement, but you never know if it's going to be forward, backwards, or sideways." - H. Jackson Brown, Jr.

"Judge not by the eye but by the heart." - Native American Proverb

almc31-Aug-06 23:05

almc

31-Aug-06 23:05

Hello,

For what I can see, if I change the thread so that I can call it as a function, the problem also happens... So it's not a thread thing.
But I don't know hat else can I do...
Any ideas?

Thanks for you time.

ALMC

BackGround Bitmap

radhika2831-Aug-06 3:45

radhika28

31-Aug-06 3:45

Hi,
Can we use a bitmap as a background to a dialog by writing the suitable code in OninitDialog function .

Thanks in advance,
Radhika.

Re: BackGround Bitmap

_AnsHUMAN_ 31-Aug-06 4:03

Question for Foreign Langauge Speakers

31-Aug-06 4:03

radhika28 wrote:
bitmap as a background to a dialog

See WM_PAINT:
Use BitBlt()/StretchBlt() if you want to set the image as a background on the dialog

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

_AnShUmAn_

Re: BackGround Bitmap

Hamid_RT31-Aug-06 7:31

Hamid_RT

31-Aug-06 7:31

See

<br />
#include AtlImage.h<br />
CImage	m_Image;<br />
<br />
/////////////<br />
	m_Image.Load("c:\\0.bmp");<br />
<br />
void CanswerDlg::OnPaint() <br />
{<br />
	CPaintDC dc(this); // device context for painting<br />
	m_Image.BitBlt(dc.m_hDC,0,0,640,480,0,0);<br />
}<br />
<br />

WhiteSky

Joel Holdsworth31-Aug-06 3:36

Joel Holdsworth

31-Aug-06 3:36

I need to find the Spanish and Italian translation of the text which is displayed on the windows message box buttons: OK, Yes, No and Retry. Can anyone provide them, or point me to somewhere where I'd find them myself? I also need the translation of the the word "Back" (as in back to the previous menu) for French, German, Spanish and Italian - google translator seems to interpret it as back-side!

Joel Holdsworth

Re: Question for Foreign Langauge Speakers

toxcct31-Aug-06 3:44

Re: Question for Foreign Langauge Speakers

31-Aug-06 3:44

Joel, i think you can ask this in the Lounge... it is general enough to be asked there Wink | ;)

moreover, you'll get more answers, as the Lounge counts much more people, coming from different technical forums...

TOXCCT >>> GEII power

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

Rage31-Aug-06 3:45

Rage

31-Aug-06 3:45

AFAIK, microsoft has a web page with translation of the common "microsoft" control text. Search the msdn for that, or even this forum, there was a thread about that recently.

~RaGE();

I think words like 'destiny' are a way of trying to find order where none exists. - Christian Graus

Re: Question for Foreign Langauge Speakers

toxcct31-Aug-06 4:09

show text on next line in an edit box

31-Aug-06 4:09

yes, he asked it this morning Smile | :)

TOXCCT >>> GEII power

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

Kiran Pinjala31-Aug-06 2:44

Kiran Pinjala

31-Aug-06 2:44

I have an edit box and its variable is m_strEdit.Its a multiline edit box.
I want to shwo two string in two lines in that edit box and i have written like this,

......<br />
UpdateData();<br />
m_strEdit = "one"+"\n"+"two";<br />
UpdateData(false);<br />
......

but its showing it as
one|two
in the edit box.
How to solve this.

KIRAN PINJARLA

Re: show text on next line in an edit box

_AnsHUMAN_ 31-Aug-06 2:51

31-Aug-06 2:51

Turn the want return property of the edit box to true.(If you like to)
m_strEdit = "one"+"\r\n"+"two";

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

_AnShUmAn_

Mouse button down

majco33331-Aug-06 2:14

majco333

31-Aug-06 2:14

Hi,

I need to detect whether is left mouse button is down..
Do you want how do it?

I uset ::GetCursorPos() but I need to detect mouse flags too..

Thanks

toxcct31-Aug-06 2:26

31-Aug-06 2:26

handle WM_LBUTTONDOWN

TOXCCT >>> GEII power

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

IlanTal31-Aug-06 2:26

IlanTal

31-Aug-06 2:26

In the properties pane there are messages which you can override.
If you override WM_LBUTTONDOWN it should generate a routine called OnLButtonDown.
At least this is the way I do it.
Hope this is what you are looking for.

_AnsHUMAN_ 31-Aug-06 2:41

31-Aug-06 2:41

majco333 wrote:
::GetCursorPos() but I need to detect mouse flags too..

case WM_MOUSEMOVE:
if(wParam & MK_LBUTTON)
{
   // Do something when the left mouse button is down.Take coordinates
   // Check POINT pt={LOWORD(lParam),HIWORD(lParam)};
}
break;

Hope that I understood you correctly

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

_AnShUmAn_

majco33331-Aug-06 2:35

majco333

31-Aug-06 2:35

I know but I need to detect mouse flags out of child window...

_AnsHUMAN_ 31-Aug-06 3:22

31-Aug-06 3:22

Can you clarify what exactly do you want to do?

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

_AnShUmAn_