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I am attempting to use the parallel port for output control. I thus write a simple code to test the outp() as follow:
#include <conio.h>
void main (void)
{ int i;
i = outp(888,1);
}
VC6.0 returned the followign error msg :
error LNK2001: unresolved external symbol _outpw
Would appreciate any help to solve this. Thanks!!
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You have to link your project with whichever library outpw is in - i think it's LIBC.LIB but i'm not sure
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Phlip
Always proofread carefully to see if you any words out
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First, what OS are you planning to run this on? inp and outp do not work on Windows NT based systems (NT, 2000, XP, 2003, etc..)
Second, you need to link to the right lib file.
--
Where are we going? And why am I in this handbasket?
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come on, someone must know this...
How can you send a char that's not on the keyboard using SendInput?
To send '¯', for example, you hold alt and type 0175 on the num pad.
So I guessed this, but it doesn't work 
int i;
INPUT input[10];
ZeroMemory(input, sizeof(input));
for (i = 0; i < 10; i++)
input[i].type = INPUT_KEYBOARD;
input[0].ki.wVk = 18;
input[1].ki.wVk = input[2].ki.wVk = 0x60;
input[3].ki.wVk = input[4].ki.wVk = 0x61;
input[5].ki.wVk = input[6].ki.wVk = 0x67;
input[7].ki.wVk = input[8].ki.wVk = 0x65;
input[9].ki.wVk = 18;
input[2].ki.dwFlags = input[4].ki.dwFlags = input[6].ki.dwFlags =
input[8].ki.dwFlags = input[9].ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(10, input, sizeof(INPUT));
using a keyboard logger, i can see that it does exactly what I want, ie press alt, type 0175, release alt, but it doesn't send '¯' to the active app
Any ideas?
thanks in advance
=====
Phlip
Always proofread carefully to see if you any words out
BTW: Why doesn't replying bump messages to the top of the forum?
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Undoubtedly "cin" is one of those quick ways you can use to receive data. But how reliable is it?
I ask the question because I noticed at times I'd get the right amount of data inputted, and at other times, not only would I receive one ot two characters less, but they'd be in the wrong order in which they were entered.
It is NOT a permanent situation I'm talking about for which I'm using "cin", but if it's reliability is in question during development, I'd just as soon not bother using it. (Or is there some way I can improve its reliability? Yes, I do use "cin.clear()" right before I start inputting, and "No", I don't enter more data than the buffer can hold.)
Thanks.
William
Fortes in fide et opere!
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forget that stuff, use C
char input[80];
printf("Enter a string: ");
gets(input);
printf("\nYou Typed: %s\n", input);
puts(""); // line return;
puts("press any key to continue");
getc(stdin);
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Thanks for your answer, but the ONLY reason why I used "cin" was because of the characters it delivered from the "istream" buffer, I could use in test like, "isspace", "isalpha", "ispunct" (etc.) as they were coming in.
Nonetheless, your suggestion does have merit to it. Thanks.
William
Fortes in fide et opere!
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Using gets() is about as unsafe as you can do it. What if the user types more than 80 characters? Buffer overflow. That it what causes crashes. At least use fgets() where you can actually specify the size of the buffer.
There is nothing wrong with using the STL streams. I would choose it every time over gets().
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Ryan Binns wrote:
types more than 80 characters? Buffer overflow. That it what causes crashes. At least use fgets()
I think that's pretty obvious, you can use fgets() too, although normally for file i/o, but it doesn't really matter as long as you know what your doing.
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sure, but if you're writing a quick application that requires inputs like names, it's pretty safe to assume 80 or 100 chars will be ok.
I don't get paranoid about that stuff. You can however use fgets() with stdin as the file handle as you said.
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I don't know who I'm quoting at the moment, but I need to let you know:
"Programming nowdays is a contest of making the best idiot proof program, against the universe making bigger idiots!"
(2 thums up to the one who thought of that sentence  )
A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.
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I managed to put together a very cool looking
.chm file using the program FAR. How can I
execute the .chm from my program? I used the
code:
CreateProcess(NULL, "help.chm, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
But it didn't work, even though it works for all the
other .exe files that I have. Is there something
special I need to do to run a .chm file?
Please, please, any response any one can give me
will be greatly appreciated.
Sincerely,
Danielle (an overworked graduate student)
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ShellExecute(NULL, _T("Open"), _T("help.chm"), NULL, NULL, 0);
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you also had a non-matching parenthesis in your code.
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It worked.
Thank you very much. ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)  ;)
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ShellExecute will work, but you need to use the HtmlHelp Api.
This will also help you launch directly a specific topic inside the chm help file.
HtmlHelp(m_hWnd, AfxGetApp()->m_pszHelpFilePath, HH_HELP_CONTEXT,
<topid_id>);
Also, you need to do this to replace the '.hlp' extension to .chm. in your initinstance.
CString strHelpFile = _pszHelpFilePath;
strHelpFile.Replace(_T(".HLP"), _T(".chm"));
free((void*)m_pszHelpFilePath);
m_pszHelpFilePath = tcsdup(strHelpFile);
You can download htmlhelp lib and header files from microsoft's site, if you don't have it already.
Hari Krishnan
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pranavamhari wrote:
HtmlHelp(m_hWnd, AfxGetApp()->m_pszHelpFilePath, HH_HELP_CONTEXT,
);
You have missed 4th parameter of HtmlHelp. Can you tell me what to give here when using HH_HELP_CONTEXT command. I am giving mapid but getting this message
"HH_HELP_CONTEXT called without a [MAP] Section."
Any remedy to this?
Hashim Saleem
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Now instead of using HH_HELP_CONTEXT, I am doing this
<br />
::HtmlHelp(NULL, <br />
"C:\\MyHelpFile.chm::/Welcome.htm>MyWindow",<br />
HH_DISPLAY_TOC,<br />
NULL) ;<br />
I am achieving my purpose. But tell me is it the right way instead of
HH_HELP_CONTEXT.
Hashim Saleem
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I've tried to put background image into CListCtrl, but i completely ran out of ideas how to do this!!!
I cannot use owner drawn control because I need big icons.
I cannot use CListCtrl::SetBkImage() because it cannot stretch bitmap;
Maybe this is done somehow by using custom draw, but I failed. Can somebody give me link to working sample with background image?
Give me any suggestions!
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when you OnSize, dynamically resize the bitmap to the client area rect, then CListCtrl::SetBkImage(), there are good chapters on bitmap manipulation in Charles Petzold's programming windows 95 and Programming windows with MFC by j. procise
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Im currently working on an addin for visual studio 6.0 and I need to retrieve the selected item in the classview, the item could be the name of a class, method or attribute.
Any suggestions? Im totally stucked
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There's a special UI tool in O'reilly's "Win32 API Programming with Visual Basic" on the compliment CD, that lets you grab any child window's handle by clicking on it.
You could get that book, then use the tool on the CD to get that class tree control's window handle, and view it's messages. It no doubt sends notify messages to its parent.
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I'm relatively new at SDI programs (and I haven't touched MDI yet), but I have worked with MFC dialogs a lot. It would be convenient to be able to create a dialog resource (probably one without a frame) and then be able to use that as my view. Is this possible to do? If so, how would I go about doing this?
If this is not possible to do, where would I create windows such as CButtons and CEditBoxes? I tried doing this in the OnPaint function, but I just get flicker. Thanks for any help you can give me!
Douglas A. Wright
dawrigh3@kent.edu
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