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The project is to simulate a Finited State Machine running with a specific input sequencr. Just highlight the path it goes through.
The problem is to set a Pause button to stop and restart it. How??? Do I has to use thread?? If yes how to
( My view class is base on CScrollView )
Thanks!!
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Does anyone know of a function/routine to tell me how many files are on a disk drive? Can't find anything in MSDN.
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I would use the FindFirstFile and FindNextFile.
You specify "*" as filter and then count the files. This way you also can count only specific files with specific extensions, or only count directories.
I don't know of any function which directly returns the number of files on a drive.
-Dominik
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Thanks for the help. I thought of also doing that but it would be pointless since I need this number to be set for a progress bar which is active during searching of the hard drive for files so it kind of defeats the purpose of doing that twice...any other ideas?
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Another idea:
First step: Get the used size on the disk (capacity minus free space). Use this function:
BOOL GetDiskFreeSpaceEx(<br />
LPCTSTR lpDirectoryName,
PULARGE_INTEGER lpFreeBytesAvailableToCaller,
PULARGE_INTEGER lpTotalNumberOfBytes,
PULARGE_INTEGER lpTotalNumberOfFreeBytes
);
Second step: Every time you process a file, subtract its size from the space.
Now you can compute the remaining bytes to process. Set this into relation and make a nice status bar.
-Dominik
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Thanks, that should do it...why didn't I think of that?!
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Sorry to bother again but I seem to be running into a problem with the GetDiskFreeSpaceEx function:
This is what i used:
GetDiskFreeSpaceEx("c:\\", &iFreeBytes, &iTotalBytes, &iTotalFreeBytes);
and these were my results:
iFreeBytes = 1711489024
iTotalBytes = 0
iTotalFreeBytes = 1697718272
Can't really figure out the problem...right clicking on drive c in explorer gives me freebytes as above (the first arguement) and for the drive capacity i have 5,992,685,568 bytes. Is there anything that I'm overlooking?
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When you print the results you can't just use %d specification since you're dealing with 64-bit values. Try a format string of "%I64d" and I'm sure you'll see quite a change. 
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Hello,
I have a problem. I want use the glGetString function to get the vendor, version and extension strings. But this doesn't work.
My project does not need an OpenGL window. I don't need to draw anything. I just want the information by glGetString. You can think of a system information tool.
I LoadLibrary("OpenGL") the OpenGL library and then get the function using GetProcAddress(g_hOpenGL, "glGetString").
But glGetString always returns zero.
If I replace "OpenGL" with "GLU32", and replace "glGetString" with "gluGetString", so not using the main OpenGL library, but instead the utilities library, the functions work fine.
But the utilities library supports fewer information (just version and extensions).
How can I get the glGetString function work?
Do I have to initialize a window to make the glGetString function work? Or did I miss something?
Any idea?
Thank you!
-Dominik
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Was "OpenGL" just a typo?
You should LoadLibrary("OpenGL32.dll") and nothing else.
Also, if you always need to do this you could equally well statically link with the opengl32.lib import library and get rid of the LoadLibrary and GetProcAddress calls.
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Can anyone tell me a function/routine to find out the number of files on my hard drive...I didn't find anything in MSDN...Thanks is advance.
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This is a programming question - how ?
The reason is that people have been coming onto CP and downloading the whole site, which is expensive for the site and not the idea of the site.
Personally, I think it's great. I don't get why people would be so lazy as to not create an account. It costs nothing and does not even require a valid email address. If you're not going to participate in this site at all, and just take the code provided, that's fine by me ( really ), but why wouldn't you at least give Chris another number to show potential advertisers how much traffic the site gets. It's the least you can do for the amount of free code you're able to download here.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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good then I do not spend my time as unregistered anymore.
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Glad to hear it.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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I will not answer to this....
but only because I like to keep away flamebates from this forum and appreciate a friendly surrounding.
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Anonymous wrote:
but only because I like to keep away flamebates from this forum and appreciate a friendly surrounding.
What is your problem ? You said you were not going to post anonymously anymore ( I presume now you were being sarcastic ), and I took it in good faith and said I thought it was a good thing that you create an account and put your name to your opinions. Actually, all I said, with those things in mind, was 'glad to hear it'. The possibility that you were being rude and sarcastic crossed my mind, but I gave you the benefit of the doubt, made an encouraging comment, and now I am trying to bait you ?
Every time I try to be nice to anonymous posters, I am left with a stronger opinion that anonymous posts should be banned and a valid email address required to create an account. I'd also bar hotmail et al. I think people would be less arrogant if they knew that when they said something, people who read it would be able to reply, and would know who they were.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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Hi
i need to write programs using viusal c++ but i do not know the commands to use.
When i read the explainations from the MSDN library the terms used are very technical.
i need to know
1)how to read texts from the .ini file,
2)create directories
3)compare files
4)move files and store them to specific directories.
5)check time
Where can i find a simple book or web site that explains in simple terms.
Thks
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needhelp ;(( wrote:
i need to write programs using viusal c++ but i do not know the commands to use.
When you say need, why ? Is it for school ? Do you have a one off project you need to complete for some other reason ?
needhelp ;(( wrote:
When i read the explainations from the MSDN library the terms used are very technical.
Yeah, that's called C++. Actually, a lot of the MSDN examples are in C, so they can be used by all Windows programmers, even those living in the dark ages.
needhelp ;(( wrote:
Where can i find a simple book or web site that explains in simple terms.
My first book was 'teach yourself C++ in 24 hours'. If you're looking to connect the numbers to get a simple windows app going and not really learn how to program ( and that's fair enough if you don't intend on coding again ), then 'teach yourself visual c++ in 24 hours' is a good starting point.
What's your reason for needing to do this, obviously without any background or experience ? What time frame do you have ? There are websites where you can pay people to write a one off project for you, that may be an option also, depending on your circumstances. If however you want/need to learn it yourself, those books are a good start, and you can always ask specific questions here when you get stuck. That's what I did.
Good luck.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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Hi,
Thks for replying.
It was for my school project. I wrote some of the commands on visual c using c langauage it has many errors.
Besides, i brought many book like 'teach yourself in 21 days' What was taught inside the book are not what i need to know.what i need to know are not taught.
i went throught a lot of books but none areuseful to me.
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needhelp ;(( wrote:
It was for my school project. I wrote some of the commands on visual c using c langauage it has many errors.
Does this mean the rest of the class is doing the same thing, or that you're all doing whatever you like within certain parameters ? If it's for a school project, I can't help think that the class should have taught you everything you need to know to do it.
needhelp ;(( wrote:
Besides, i brought many book like 'teach yourself in 21 days' What was taught inside the book are not what i need to know.what i need to know are not taught.
In the world of computers, new languages and API's are always coming out. What is needed is not knowledge of this or that, but of how to learn. The teach yourself C++ books would teach you the C++ language, which ideally you should learn first. The 'visual C++' books teach how to write a windows program with MFC, how to intercept messages and so on. If you completed both of these books, you'd have no trouble reading the MSDN documentation.
needhelp ;(( wrote:
i went throught a lot of books but none areuseful to me.
You're asking for some reasonably basic things, which are discussed in MSDN, with example code and full explanation of syntax. It seems to me that you're way out of your depth here. If you're doing a set assignment, you should probably go and see your teacher and ask for some advice on how to revise the classes you missed or did not understand. If you're setting your own task, you should probably rethink it unless you have a fair while to finish it in. Any explanation I give of the things you want to do would either be as confusing for you as MSDN is, or they would simply do your work for you, which is of no value to anyone.
If you have no choice, I recommend revisiting the books you have bought, learn some C++, read the MSDN and ask questions if you get stuck on specific problems. There was a recent article on moving a directory and it's contents in code, I suspect it would explain and call a lot of the API's that do the sort of stuff you want. I've also written a number of articles on the iostreams library, ifstream is the class you want to look up for reading files off disk, and ofstream for writing them again.
Good luck.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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Hello,
I am trying to create a three-way splitter window (two rows, with the upper one vertically split into two columns). I have the problem that, although they are created properly, and I can initialise them with data, when the app starts, the horizontal splitter begins by being right up against the top of the window, so that I have to pull it down before I can see the data. The vertical splitter is fine.
My code is as follows:
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT /*lpcs*/, CCreateContext*
pContext)
{
// TODO: Add your specialized code here and/or call the base class
CRect rect;
GetClientRect( &rect );
CSize size = rect.Size();
size.cx /= 2; // Initial column size
size.cy /= 2; // Initial row size
// 1 - Create first static splitter
if( !m_wndSplitter1.CreateStatic( this, 2, 1 ) ) // 2 rows, 1 col
{
TRACE0( "Failed to create first static splitter\n" );
return FALSE;
}
// 3 - Create nested static splitter
if( !m_wndSplitter2.CreateStatic( &m_wndSplitter1, 1, 2, // 1 row, 2 cols
WS_CHILD | WS_VISIBLE,
m_wndSplitter1.IdFromRowCol( 0, 0 ) ) )
{
TRACE0( "Failed to create nested static splitter\n" );
return FALSE;
}
// 4 - Create top-left view
if( !m_wndSplitter2.CreateView( 0, 0, // row 0, col 0
RUNTIME_CLASS( CLPSTreeView),
size, pContext ) )
{
TRACE0( "Failed to create top-left view\n" );
return FALSE;
}
// 5 - Create top-right view
if( !m_wndSplitter2.CreateView( 0, 1, // row 0, col 1
RUNTIME_CLASS( CLPSListView ),
size, pContext ) )
{
TRACE0( "Failed to create top-right view\n" );
return FALSE;
}
// 2 - Create bottom row view
if( !m_wndSplitter1.CreateView( 1, 0, // row 0, col 0
RUNTIME_CLASS( CLPSEditView ),
size, pContext ) )
{
TRACE0( "Failed to create bottom view\n" );
return FALSE;
}
return TRUE;
//return CFrameWnd::OnCreateClient(lpcs, pContext);
}
Theoretically, the horizontal splitter should start by being halfway down the window, shouldn't it?? I would be grateful for any help.
Thanks,
Paul Trimming
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hi,
How can i delete files locked by windows ?
I want to delete the 'index.dat' file in the folder '\windows\temporary internet files\content.ie5' folder programmatically.
thanks
Hari Krishnan
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I *think* the API to unlock a file is called 'SetFileAttributes', but I doubt that will work here. If the system has the file open, there isn't anything you can do about it.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
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I need a folder / file search dialog - I am aware of CFileDialog, but this won't return folder paths, only file paths. Is there any other class which will give me this combined function ? (The folder search is often used in installation programs, so I guess something standard must exist)
Doug
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