C / C++ / MFC

27-Dec-05 20:19

hi,

can anyone tell me how to make a dialogbox (modal and non modal) fade in ?
I have heard that you can do it with AnimateWindow(), but there is not much code around and MSDN isn't helping much either.

thanks for the replies in advance Smile | :)

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

Owner drawn27-Dec-05 20:38

27-Dec-05 20:38

_kane_ wrote:
MSDN isn't helping much either

Hope this helps...

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/animatewindow.asp[^]

Jesus Loves You and Me Smile | :)

<marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'">
--Owner Drawn
--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord

_kane_27-Dec-05 23:36

27-Dec-05 23:36

Hi, i already saw that link before. My question is when to call the function and how?(yea, I can be pretty dumb sometimes Blush | :O

)

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

vikas amin27-Dec-05 23:48

vikas amin

27-Dec-05 23:48

yeh kane i have gone through this stuff
but i cannot find the implemented file.
Sooner i get it will send it to u
I had done it with a DialogBox

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Owner drawn27-Dec-05 23:51

27-Dec-05 23:51

Use it in place of ShowWindow(...).

That's what they Roll eyes | :rolleyes:

say...;)

Jesus Loves You and Me Smile | :)

_kane_28-Dec-05 0:42

28-Dec-05 0:42

well, if you are meaning something like this :

CMyDialog *dlg;

dlg=new CMyDialog;
dlg->Create(IDD_MAINDIALOG,NULL);

then
dlg->AnimateWindow() is not a member. Its a member of CWnd.

On the other hand, I had a look at Shog9 's code at http://www.codeproject.com/miscctrl/balloonhelp.asp[^] and did the following:

made the following addition in my .h file :

private:<br />
	typedef BOOL (WINAPI* FN_ANIMATE_WINDOW)(HWND,DWORD,DWORD);<br />
   FN_ANIMATE_WINDOW m_fnAnimateWindow;

made the edition in the default constructor as :

CMyDialog::CMyDialog(CWnd* pParent /*=NULL*/)<br />
: CDialog(CMyDialog::IDD, pParent),m_fnAnimateWindow(NULL)

and changed the WM_SHOW like this :

void CMyDialog::OnShowWindow(BOOL bShow, UINT nStatus) <br />
{<br />
	 if ( NULL != m_fnAnimateWindow )<br />
   {<br />
      <br />
         m_fnAnimateWindow( m_hWnd, 200, AW_BLEND);<br />
     <br />
   }<br />
}

now I get no compiler errors, the window shows, but no animation Cry | :((

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

_kane_28-Dec-05 1:02

28-Dec-05 1:02

OK i have figured it out, the problem was AW_BLEND. it don't work with child windows. I used AW_CENTER and it worked fine, but now the 2nd hurdle.
I have used bitmapped background and controls and they appear messed up.

any ideas what to do?

"Some guys hack just to get themselves a girlfriend.What a pathetic reason huh ?"

Owner drawn28-Dec-05 16:37

28-Dec-05 16:37

Make sure you set the bitmap background in the message handler for

WM_ERASEBKGND.

And if you are doing your own background painting return a NON-ZERO value. Big Grin | :-D

Jesus Loves You and Me Smile | :)

ThatsAlok28-Dec-05 0:34

ThatsAlok

28-Dec-05 0:34

_kane_ wrote:
thanks for the replies in advance

Ok.. My Pleasure Smile | :)

.. kiddin.. Use AnimateWindow in OnInitDialog Function like this :-

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

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	::AnimateWindow(this->GetSafeHwnd(),5000,AW_BLEND);
	return FALSE;  // return TRUE  unless you set the focus to a control
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

ThatsAlok28-Dec-05 0:39

ThatsAlok

28-Dec-05 0:39

_kane_ wrote:
thanks for the replies in advance

Thanks

... Kiddin. Use AnimateWindow Api in the OnInitDialog Function of Dialog like this, its working fine for me :-

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

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	::AnimateWindow(this->GetSafeHwnd(),5000,AW_BLEND);
	return FALSE;  // return TRUE  unless you set the focus to a control
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Smart Device project problem

BlackDice28-Dec-05 10:20

BlackDice

28-Dec-05 10:20

I use the following code in a function that allows the animations to be random. I call it in OnInitDialog() (and I think I also used it when closing the dialog).

void [ClassName]::AnimateDialog(HWND hWnd)
{
	DWORD		dwTemp2,dwTemp,dwAnimate = AW_ACTIVATE;
	int			nFirst,nSecond;
	
	//seed randomNumber Generator
	srand( (unsigned)time( NULL ) );
	nFirst = rand() % 3 + 1;
		
	switch(nFirst)
	{
	case 1:
		dwTemp = AW_SLIDE;
		break;
	case 2:
		//removed because it was AW_BLEND which doesn't seem to repaint controls correctly
	case 3:
		dwTemp = AW_CENTER;
		break;
	}
	
	dwAnimate |= dwTemp;

	//these next values will only work with AW_SLIDE
	if(nFirst == 1)
	{
		srand( (unsigned)time( NULL ) );
		nSecond = rand() % 4 + 1;
		
		switch(nSecond)
		{
			case 1:
				dwTemp2 = AW_HOR_POSITIVE ;
				break;
			case 2:
				dwTemp2 = AW_HOR_NEGATIVE;
				break;
			case 3:
				dwTemp2 = AW_VER_POSITIVE;
				break;
			default:
				dwTemp2 = AW_VER_NEGATIVE;
		}
		dwAnimate |= dwTemp2;

		srand( (unsigned)time( NULL ) );
		nSecond = rand() % 2;
		
		if(dwTemp2 == AW_VER_POSITIVE || dwTemp2 == AW_VER_NEGATIVE)
		{
			dwTemp2 = 0;
			switch(nSecond)
			{
				case 1: dwTemp2 = AW_HOR_POSITIVE; break;
				case 2: dwTemp2 = AW_HOR_NEGATIVE; break;
			}
			dwAnimate |= dwTemp2;
		}//if(dwTemp2 == AW_VER_POSITIVE || dwTemp2 == AW_VER_NEGATIVE)
		else
		{
			dwTemp2 = 0;
			switch(nSecond)
			{
				case 1: dwTemp2 = AW_VER_POSITIVE; break;
				case 2: dwTemp2 = AW_VER_NEGATIVE; break;
			}
			dwAnimate |= dwTemp2;
		}

			
			
	}//if(nFirst == 1)

	::AnimateWindow(hWnd,200,dwAnimate);
}

But as you can see, I had problems with the fade myself. However what I did for a dialog that I wanted to fade was call SetLayeredWindowAttributes() in a timer event that made the small dialog fade in and out like an Outlook mail notification.

My articles

BlackDice

LiYS27-Dec-05 20:06

LiYS

27-Dec-05 20:06

Hi all:

I started a VC/SmartDevice project under VC 7.0, But the CFile class seems don't works, I wonder is it because of the specific project I choose?

The innocent statement like:

CFile file;
if ( ! file.Open( _T("C:\\Test.txt", CFile::modeRead ) )
{
    return;
}

is always invalid, the if statement always evaluate to TRUE

Prakash Nadar27-Dec-05 21:22

Prakash Nadar

27-Dec-05 21:22

firstly it is

if ( ! file.Open( _T("C:\\Test.txt"), CFile::modeRead )

The file C:\Test.txt should exist.

I belive it is also throwing a CFileException exception I am not sure about the device version, but if it throwing, then you should catch the exception and examine on what the api is complaining about.

-prakash.

-Prakash

LiYS27-Dec-05 22:00

LiYS

27-Dec-05 22:00

Mr.Prakash wrote:
The file C:\Test.txt should exist.

The file do exists!

The catch the exception, and it's complains about "...not a valid path"

Owner drawn27-Dec-05 23:02

27-Dec-05 23:02

LiYS wrote:
VC/SmartDevice pr

I think it could be because of this. D'Oh! | :doh:

Jesus Loves You and Me Smile | :)

sunit527-Dec-05 23:09

sunit5

27-Dec-05 23:09

if ( ! file.Open( _T("C:\\Test.txt"), CFile::modeRead )

may be the closing bracket around the absolute file path is not placed correctly

never say die

-- modified at 5:09 Wednesday 28th December, 2005

How to include my lib file in the vc++.net 7.0 environment

vikas amin27-Dec-05 23:46

vikas amin

27-Dec-05 23:46

We had discussed this before few days

So ur using the VC7 /SmartDevice

probably it is due to the project u have choosen
or there is some other method .

Try to put the file in the parent folder

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Unloading a DLL

Jagadeesh VN27-Dec-05 19:53

Jagadeesh VN

27-Dec-05 19:53

Hi,

I am developing a shell namespace extension which will be loaded by explorer.exe. Since I have implemented file uploading in a seperate queue, I couldn't unable the dll even if the reference count becomes zero. For that I am always returning S_FALSE from DllCanUnloadNow method.

The problem is, If someone wants to install a new version, since the dll is in memory and couldn't be unloaded I am not able to overwrite the new version. Is there any mechanism by which I can forcefully unload a dll ?

I recollect reading an article which suggests returning S_OK from DllCanUnloadNow depending on the application which is trying to unload the dll. But I couldn't find the link even after gooogling for hours.

Any help on this would be greatly appreciated!!!

Merry X'mas and Happy New Year.

Thanks and Regards
Jugs

"A robust program is resistant to errors -- it either works correctly, or it does not work at all; whereas a fault tolerant program must actually recover from errors."

Re: Unloading a DLL

Prakash Nadar27-Dec-05 21:28

Prakash Nadar

27-Dec-05 21:28

Hope this is helpfull Debuging shell extention[^]

<hr<span style="color:gray;size:15px;">-Prakash
-Prakash

Reparse points

kmr.girish27-Dec-05 19:47

kmr.girish

27-Dec-05 19:47

I need to trap IO calls (file open/close) at kernel level and take some action. can anyone help me with some direction/sample code etc.

G Haranadh27-Dec-05 19:09

G Haranadh

27-Dec-05 19:09

Previously I was using the vc++6.0.
There If I need to add one lib file to my project I do like:
1. go to project settings
2. Link tab
3. Object/Library modules
4. add lib name.

Here, But in Dot Net environment how do I do?
How to include my lib file in the vc++.net 7.0 environment?
Please tell me any one.

Nice talking to you. Blush | :O

If you judge people, you have no time to love them. -- Mother Teresa

Re: How to include my lib file in the vc++.net 7.0 environment

Owner drawn27-Dec-05 19:13