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Thanks, i will go through the link.
Helping others satisfies you...
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Hello friends
I have written a code in c++ for parallel port reading .
Programm is running successfully.
A analog to digital converter is attached to parallel printer port using 25 pin.
one side this ADC is attached to a device which gives analog voltages.
Following programm read the voltages pulses and print their values.
But I am not able to run this programm in VC++
I using conio.h and _outp _inp.
I have to run this programm using MDI application only,not dialog based.
plz suggest me where should I write the code ,what modification should I made in the following programm.
How is parallel port programming work in VC++(MDI app only)
void CStartport2View::OnDraw(CDC* pDC)
{
CStartport2Doc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
CString ms,ms1;
unsigned char a; int j,i,c; float voltage;
while(1)
{
c=0;
_outp(0x378,2);
_outp(0x378,0);
_outp(0x378,2);
for(j=0;j<5000;j++);
for(j=0;j<16;j++);
{
_outp(0x378,3);
for(i=0;i<5000;i++);
_outp(0x378,2);
for(i=0;i<5000;i++);a = _inp(0x379);
a=a&0x8; a=a>>3;
a=a&0x1; c= c*2; c=c|a;
}
ms.Format("%d",c);
pDC->TextOut(50,50,ms);
getch();
voltage = (5000.*c)/4096;
ms1.Format("%f",voltage);
ms1 = ms1.Mid(0,ms1.Find('.')+3);
pDC->TextOut(50,100,ms1);
}
Any help would be appreciated
rohini sharma
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Thanku Khaan .I try and then i will inform u.
rohini sharma
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well actually this program will work only in windows 9x series!.....i had this prob !.....didnt work in the winxp,2000.....
itz like after the win 9x os series all the ports,global mem share can go only via win api related calls.....
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I am wusing win 98.
Should I use App class for global mem variables.
Sprry but i could not understand ur solution.
bye
rohini sharma
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Hi
I had a problem with an XP program (VC 6.0) which wouldnt let me 'talk' to the parallel port. I found that using inpout32.lib and calling Inp32() or Out32() solved the problem - I dont know if this would help you.
You need to include
short _stdcall Inp32(short portaddr);
void _stdcall Out32(short portaddr, short datum);
after the header files as well.
Mike
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Just wondering how winamp sets focus on the current instance's main window when the exe is launched and winamp is already running (ofcourse you have to uncheck "allow multiple instances" check box in preferences)
I thought it was cool!! Any idea how to implement that?
I did find a very useful article on limiting instances (right here on CP!!) though
Clickety[^]
----------------------------------------------
If you need a hammer get C and shut up. If you need a nail gun get C++ and shut up. If you don't need *those* things (and good design should tell you) then by all means get a factory, factory, factory.
--code-frog@codeproject
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Using FindWindow to obtain HWND of the main window and ShowWindow, SetFocus...
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Tanx for the replies guys!! I kinda figured that one out on my own... :->
----------------------------------------------
If you need a hammer get C and shut up. If you need a nail gun get C++ and shut up. If you don't need *those* things (and good design should tell you) then by all means get a factory, factory, factory.
--code-frog@codeproject
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i want to check machine offline or online(having internet) through programming if anybody have idea please share with me.
Bankey Khandelwal
Software Engineer
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hi,
i have problem with SMTP server.
I wrote simple client but first reading from Socket is very slow.
I do function call like this:
socket() //ok
connect() //ok
select() //with 5 sec.
There is first problem, this function return after 5 sec. with result
OK (socket readable) but if I'll try 1 sec. instead it returns after 1
sec. with same result.
...next call works ok = if socket is readable it returns
immediately. (just first call after socket openning)
But another problem is
recv()
It takes about 40 sec. to get "220 something"
And again, another call of recv() works correctly (couple ms.)
Does anyone know what's wrong?
Thank you
viliam
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hey people,
i developed a vc++ COM component and i want to invoke it in my web page. i registered the component successfully n tried following code in ASP:
<%<br />
dim obj,temp,try<br />
set try=CreateObject("NEW.CReply")<br />
obj=try.CReply<br />
temp=obj.Reply(login,reply)<br />
Response.Redirect("Login.asp?reply="&reply)<br />
%>
this gave me the error:
Microsoft VBScript runtime (0x800A01AD)
ActiveX component can't create object: 'NEW.CReply'
some suggested me to use ASP.NET - the .Net-COM interoperability feature. but i've no idea as to how to do it! i read some books and found out that i should use tlbimp utility.
but tlbimp says 'NEW.dll is not compatible type library'
one of my friend said i should check the binary compatibility of the dll.
can anyone please help me out?
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How to display only buttons in XP Style not the toolbar and propertysheets
knarasimharao
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Hi.........
I noticed that it remains extremely hard to plot graphs and data by using Visual C++ 6.0.
Desesperately, I cannot manage and even deal by myself for readind data and plotting when using Visual C++ 6.0
Moreover no such sources available.
If someone has one....... Thanks a lot!
I would wecome to receive a demo, source codes for personal knowledge!
Thanks..
example of filetxt file)
Typical header:Solvers, or optimizers, are software tools that help users find the best way to allocate scarce resources.
1 5.258
2 -8.548103675
3 -7.686156375
4 -9.859503638
5 4.211616105
6
.
.
.
with comments With so many domestic distractions, working from home can tempt even the most diligent wor........
Thanks
Reagrds
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Hi,
I don't know if it will help but try:
Graphviz http://www.graphviz.org/.
regards,
Rich
"Programming today is a race between software engineers striving to build bigger and
better idiot-proof programs, and the Universe trying to produce bigger and better idiots.
So far the Universe is winning." -- Rich Cook
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thanks a lot but in fact I downloaded it and proceeded as mentionned but cannot plot any graph...
Thanks ,
Regards
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can recursive functions be inline functions?
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The compiler might not know the number of recursions that can happen during compile time. Neither can it decide it by itself. That information will be available at runtime only. So the compiler will *not* be able to generate the inline code at compile time.
Rajesh R. Subramanian
You have an apple and me too. We exchange those and We have an apple each.
You have an idea and me too. We exchange those and We have two ideas each.
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