C / C++ / MFC

15-Dec-02 7:43

I get weird results from this code:

void CGDlg::OnButton1() 
{
	WIN32_FIND_DATA wfd;
	HANDLE hRes = FindFirstFile("C:\\Documents and Settings\\dator19\\Skrivbord\\MUMMEL\\*.txt", &wfd);
	BOOL bOk = (hRes != INVALID_HANDLE_VALUE);
	while(bOk)
	{
		bOk = FindNextFile(hRes, &wfd);
		m_ListBox1.AddString(wfd.cFileName);
	}
}

I have 4 files (1.txt, 2.txt, 3.txt and 4.txt) in the directory but when I show the filnames in a listbox (m_ListBox1) the output is:

2.txt
3.txt
4.txt
4.txt

Hmm... what is wrong!
It should be:

1.txt
2.txt
3.txt
4.txt

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

C^hris L^osinger15-Dec-02 7:45

C^hris L^osinger

15-Dec-02 7:45

FindFirstFile actually gives you a file - you need to add that to your list, too.

There's one easy way to prove the effectiveness of 'letting the market decide' when it comes to environmental protection. It's spelt 'S-U-V'.
--Holgate, from Plastic

Smaller Animals Software

Rickard Andersson²⁰15-Dec-02 7:50

15-Dec-02 7:50

That fixed one bug... but it still print out the last file two times;

1.txt
2.txt
3.txt
4.txt
<code>4.txt <-- Damn %¤#"¤#¤&!!!</code>

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

#realJSOP15-Dec-02 7:50

#realJSOP

15-Dec-02 7:50

Try reversing the code in the while block

while(bOk)
{
	m_ListBox1.AddString(wfd.cFileName);	
	bOk = FindNextFile(hRes, &wfd);
}

------- signature starts

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Please review the Legal Disclaimer in my bio.

------- signature ends

Rickard Andersson²⁰15-Dec-02 7:53

15-Dec-02 7:53

John Simmons / outlaw programmer wrote:
Try reversing the code in the while block

YES!!
Thanks!

void CGDlg::OnButton1() 
{
	WIN32_FIND_DATA wfd;
	HANDLE hRes = FindFirstFile("C:\\Documents and Settings\\dator19\\Skrivbord\\MUMMEL\\*.txt", &wfd);
	BOOL bOk = (hRes != INVALID_HANDLE_VALUE);
	while(bOk)
	{
		m_ListBox1.AddString(wfd.cFileName);
		bOk = FindNextFile(hRes, &wfd);
	}
}

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

Rickard Andersson²⁰15-Dec-02 7:59

15-Dec-02 7:59

May I ask one more question: If I change to *.* instead of *.txt it adds .. and ... into the listbox. What's that? Unsure | :~

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!

C^hris L^osinger15-Dec-02 8:19

C^hris L^osinger

15-Dec-02 8:19

current and parent folders.

you should add this check:

if ((findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)==FILE_ATTRIBUTE_DIRECTORY)
{
skip it
}

a working example:
http://www.codeproject.com/file/sadirread.asp[^]

-c

There's one easy way to prove the effectiveness of 'letting the market decide' when it comes to environmental protection. It's spelt 'S-U-V'.
--Holgate, from Plastic

Smaller Animals Software

Re: OperatingSystemSimulator

Jörgen Sigvardsson15-Dec-02 7:51

Jörgen Sigvardsson

15-Dec-02 7:51

You're calling FindNextFile too soon.

--
Only in a world this sh*tty could you even try to say these were innocent people and keep a straight face.

OperatingSystemSimulator

sikrip15-Dec-02 7:30

sikrip

15-Dec-02 7:30

Hello !!!
I want to(ok i have to...)make a simulator for a operating system.Can anyone help me with this?Any resources code or something else will help me, thanks.

zenboy15-Dec-02 13:57

zenboy

15-Dec-02 13:57

What exactly do you mean?

For example if you want to run Linux in Windows you can install something like VMachine. It will take some of your HD, say 2Gig. Then you can run VMachine in a window and install Linux to it. Meaning you boot windows, work inside it. Then if you want to run Linux, you open the VMachine window and have a fresh new computer inside the window to run your Linux environment.

We used this to test a Corparate web page on Windows 95/98/ME/2000/XP on one machine, and various Linux on another.

Is this something like what you need or am I completely off base?

_tsplitpath(..) API

sedonya15-Dec-02 7:05

sedonya

15-Dec-02 7:05

I have some shell extension which splits the filename(s).
I use _tsplitpaht(..) API and have this error:

for Release MinSize/MinDependency configuration
     while _tsplitpaht(..) is in use 
     I get this Linkage error message:

         Linking...
         Creating library ../CopyFilePath.lib    
              and  object ../CopyFilePath.exp
         LIBCMT.lib(crt0.obj) : error LNK2001: 
         unresolved external symbol _main
         ../CopyFilePath.dll : fatal error LNK1120: 
         1 unresolved externals
         Error executing link.exe.
    
     while commenting _tsplitpath(..) I get no error msg.

for Debug configuration
     while _tsplitpaht(..) is in use I get NO error msg

Any ideas

Re: _tsplitpath(..) API

Michael Dunn15-Dec-02 12:02

Michael Dunn

15-Dec-02 12:02

Read the docs on LNK2001, or the VC forum FAQ. This problem is explained in both places.

--Mike--
If it doesn't move and it should: WD-40. If it moves and it shouldn't: duct tape.

1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm

DirectShow: playing wmv

hdi99kf@syd.kth.se15-Dec-02 6:28

hdi99kf@syd.kth.se

15-Dec-02 6:28

Hello.

I have an application which plays wmv-files. This is the code that runs when the play button is clicked:

IGraphBuilder* m_pGraph;<br />
IVideoWindow* m_pVidWin;<br />
IMediaEventEx* m_pEvent;<br />
IMediaControl* m_pMediaControl;<br />
<br />
USES_CONVERSION; <br />
CoCreateInstance(CLSID_FilterGraph, NULL,<br />
    CLSCTX_INPROC,IID_IGraphBuilder, (void **)&m_pGraph);<br />
m_pGraph->RenderFile(A2W(m_strVideoFile),NULL);<br />
m_pGraph->QueryInterface(IID_IVideoWindow, (void **)&m_pVidWin); <br />
<br />
m_pVidWin->put_Owner((OAHWND)this->GetSafeHwnd()); <br />
m_pVidWin->put_WindowStyle(WS_CHILD); <br />
<br />
m_pGraph->QueryInterface(IID_IMediaEventEx, (void **)&m_pEvent); <br />
m_pEvent->SetNotifyWindow((OAHWND)this->GetSafeHwnd(),WM_GRAPHNOTIFY, 0); <br />
<br />
m_pGraph->QueryInterface(IID_IMediaControl, (void **)&m_pMediaControl); <br />
m_pVidWin->SetWindowPosition(XMARG,YMARG,iWidth,iHeight);<br />
m_pVidWin->put_Visible (OATRUE); <br />
m_pMediaControl->Run();

There is one problem with this code. The first time the button is clicked the movie is not played but tha second and third time it works fine. Does anybody have any idea on what is wrong? Any help would be very appriciated.

/Charlie.

GDI question

Shah Shehpori15-Dec-02 6:15

Shah Shehpori

15-Dec-02 6:15

I want to load text, that i drawn in a window, in Memory and then bitblt it in a bitmap. Can any one tell me how OR give me the link of any such sample program.

Thanks

Re: GDI question

Paul M Watt15-Dec-02 17:50

Paul M Watt

15-Dec-02 17:50

If you have already drawn the text to the window, then all that you need to do is call ::GetDC in order to get a device context to that window, and create a MemoryDevice context to blit the data to.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Politicalamity

Kevnar15-Dec-02 5:52

15-Dec-02 5:52

Now that North Korea is threatening the US with "bitter defeat and death", I suppose we'll finally see if the war in Iraq is really about disarming threats to US, or simply freeing up the land for the fabled oil pipline as some claim. Presently North Korea seems to be a greater threat to the US than Iraq, who is at least feinging coperation. What will the US and its allies do?

My guess is that Iraq and North Korea are in cahoots, and North Korea is just blowing smoke to get the US's attention off Iraq. Why else would a seemingly insignificant little country with a couple of nukes be standing up and boasting so loudly like the c**k-of-the-walk against one of the largest military forces in the world? My other guess is that maybe N. Korea figures the US is too busy with Iraq to do anything about it and is just shouting "mlah, mlah, mlah!" like a little brat from the sidelines.

My third guess is that the US actually may end up carpet bombing N. Korea if they try anything stupid, and then move on the way you turn to bigger threats after swatting a mosiquito. I'm not saying that's right, I'm just guessing. The US has shown tremendous restraint after September 11. These rogue nations better not push their luck.

On another note, there have been a lot of anti-war protestors in the US lately. "Stop the war, stop the war!" they cry. What will they be saying after N. Korea suddenly delivers their brand of bitter defeat and death, or even attempts to? It's like the abused wife who suddenly attacks the cops when they come to arrest her husband.

"My brother says 'Hello'... So hurray for speech therapy!" -Emo Phillips

Michael Dunn15-Dec-02 6:28

Michael Dunn

15-Dec-02 6:28

This topic belongs in the Soapbox.

--Mike--
If it doesn't move and it should: WD-40. If it moves and it shouldn't: duct tape.

1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm

Kevnar15-Dec-02 6:50

15-Dec-02 6:50

Sorry. Somehow this ended up in the C++ forum. I didn't notice.

"My brother says 'Hello'... So hurray for speech therapy!" -Emo Phillips

Christian Graus15-Dec-02 10:57

Christian Graus

15-Dec-02 10:57

Michael Dunn wrote:
This topic belongs in the Soapbox.

Here's a funny thing. I run several CP windows open in the morning as I catch up, so I saw this at the top, responded to it, and then thought 'what are all these programming questions doing in the soapbox ?'.

Christian

P.S. Although I love helping people through the CP message boards, the amount of abuse I have copped in recent times forces me to adopt a policy where I will only answer questions put to me through the boards. It is also to your benefit to ask on the site, I don't know half of everything, and a publically posted question will get you more than one person trying to help. I would especially prefer to live in a world where no-one ever sends me a zipped project with instructions on wh

ColinDavies15-Dec-02 14:26

ColinDavies

15-Dec-02 14:26

Christian Graus wrote:
'what are all these programming questions doing in the soapbox ?'.

ROTFLOL Smile | :)

Regardz
Colin J Davies

Sonork ID 100.9197:Colin

You are the intrepid one, always willing to leap into the fray! A serious character flaw, I might add, but entertaining.
Said by Roger Wright about me.

Kevnar15-Dec-02 15:57

15-Dec-02 15:57

I thought the same thing, when Micheal told me to put it in the soapbox. I thought "I wonder why people are answering programming questions in the lounge."

"My brother says 'Hello'... So hurray for speech therapy!" -Emo Phillips

Christian Graus15-Dec-02 10:54

Christian Graus

15-Dec-02 10:54

Are you an Extreme fan, or did you come up with 'Politacalamity' independently of their brilliant 'three sides to every story' album ?

Christian

P.S. Although I love helping people through the CP message boards, the amount of abuse I have copped in recent times forces me to adopt a policy where I will only answer questions put to me through the boards. It is also to your benefit to ask on the site, I don't know half of everything, and a publically posted question will get you more than one person trying to help. I would especially prefer to live in a world where no-one ever sends me a zipped project with instructions on wh

Kevnar15-Dec-02 15:48