simple C question... - C / C++ / MFC Discussion Boards

lucy1-Apr-03 9:40

1-Apr-03 9:40

I have a program which read the serial port. I have it running okay on Windows 2000, but when I tried on Windows95, this is the error message I got:

"Linked to missing export KERNEL32.DLL:Cancello"
"A device attached to the program is not functioning"

What can be wrong? TIA!

Re: cannot run on windows95??

C^hris L^osinger1-Apr-03 9:42

C^hris L^osinger

1-Apr-03 9:42

the program uses a function that is not available in the Win95 kernel.

-c

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Re: cannot run on windows95??

lucy1-Apr-03 9:43

lucy

1-Apr-03 9:43

thank you! Rose | [Rose]

I will let my partner know that I am not supporting Windows95 then. Dead | X|

Re: cannot run on windows95??

Joan M1-Apr-03 19:49

Joan M

1-Apr-03 19:49

If you want, you can try to use Rational Purify Plus in order to check which functions are used by your application that are usupported for Win95, you can download the demo version and check it.

Else you can check it by yourself by checking all the functions used in MSDN in order to know the OS required for that function...

There are a lot of ways to know which OS you are using (where your app has been installed) and you could write an application that work in different ways depending on the OS.

Hope this helps.

getting the list of standard key events for a CTreeCtrl

Stephane Routelous1-Apr-03 9:31

Stephane Routelous

1-Apr-03 9:31

Hi,

do you know where I can get the list of key events handled by a CTreeCtrl ?
For instance, in the Explorer, you can use '+' to expand and '-' to collapse.

I searched MSDN, but didn't find it.

Any ideas, links ?

TIA,

Stephane
www.exotk.org

Multiple FramWnds in an SDI App?

Ender16181-Apr-03 8:42

Ender1618

1-Apr-03 8:42

Is it possible to have multiple FrameWnds in a SDI App? What i want to do is have my main SDI FrameWnd(which contains a splitter and views within the splitters), and call up a dialog that contains a splitter window and different views of my current open document. So i thought i would just be better to have the that Dialog actually be an aux FrameWnd. Can you have multiple frame windows? I want my mainframe to stay my mainframe but i want to bring this other FrameWnd up when needed (modelessly). Is this possible in MFC Doc/View? Confused | :confused:

Re: Multiple FramWnds in an SDI App?

Woody Green2-Apr-03 3:25

Woody Green

2-Apr-03 3:25

Hi
Yes you can. You must destroy the old frame and create the new one. Look for the swsplit.exe sample in the Microsoft knowledge database. This shows you how.

Woody

simple C question...

Raphael Kindt1-Apr-03 8:29

Raphael Kindt

1-Apr-03 8:29

Hi...
I'm looking for a C function which detects a key pressed. For example a function like IsKeyPressed() which returns a boolean... The function must return immediately without waiting until a key is pressed.
Thanks for your help

Hello World!!! Smile | :)

from Raphaël

Re: simple C question...

C^hris L^osinger1-Apr-03 9:19

C^hris L^osinger

1-Apr-03 9:19

kbhit

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Re: simple C question...

Michael Dunn1-Apr-03 9:22

Michael Dunn

1-Apr-03 9:22

Check out _kbhit()

--Mike--
THERE IS NO THERE IS NO BUT THERE IS MAGIC PIXIE DUST BUSINESS GENIE CODE PROJECT

Homepage | RightClick-Encrypt | 1ClickPicGrabber
"You have Erica on the brain" - Jon Sagara to me

Re: simple C question...

Raphael Kindt1-Apr-03 9:44

Raphael Kindt

1-Apr-03 9:44

thanks a lot...

Hello World!!! Smile | :)

from Raphaël

Re: simple C question...

Jambolo1-Apr-03 20:34

Jambolo

1-Apr-03 20:34

GetAsyncKeyState() is a Windows function that will tell you the state of a particular key.

gzip

Todd Smith1-Apr-03 8:24

Todd Smith

1-Apr-03 8:24

Knowing that IE supports gzip'd files, is the API, hidden or otherwise, available in Win32?

Todd Smith

Re: gzip

Stephane Rodriguez.1-Apr-03 11:20

Stephane Rodriguez.

1-Apr-03 11:20

gzip in IE is a custom protocol handler. Lookup the registry at this place : HKCR \ PROTOCOLS \ Filters \ gzip (as well as deflate).

If for any reason you want to take advantage of the built-in IE gzip library, then I believe you have to host the protocol handler, as explained here[^]. But, getting the library gzip.org might just be as fine....;)

I want to insert a new line between subjects in a CString variable.

ElizabethC1-Apr-03 8:21

ElizabethC

1-Apr-03 8:21

I want to insert a new line between subjects in a CString variable.
For example, instead of
"Grade A Grade B Grade C"
I want the text saved in a database as
"Grade A
Grade B
Grade C"

I tried doing something like this
str1 + '\n' | str2 + '\n' + str3

But this does not insert a new line.

-Elizabeth

Eilzabeth

Re: I want to insert a new line between subjects in a CString variable.

Dave Bryant1-Apr-03 9:17

Dave Bryant

1-Apr-03 9:17

Elizabeth Chang wrote:
I tried doing something like this
str1 + '\n' | str2 + '\n' + str3

Can you please post the exact code you are using?

What database are you using? Some databases may expect a carriage-return line-feed pair for the end of a line (that is "\r\n" or 0x0d0a).

Dave
http://www.cloudsofheaven.org

Re: I want to insert a new line between subjects in a CString variable.

ElizabethC1-Apr-03 10:50

ElizabethC

1-Apr-03 10:50

The string "\r\n" works on both saving to the database (Oracle) and displaying on a CEdit control. Here is the syntax I used:
str1 + "\r\n" + str2 + "\r\n" + str3

Thank you.

-Elizabeth Smile | :)

Eilzabeth

Re: I want to insert a new line between subjects in a CString variable.

Nick Parker1-Apr-03 11:29

Nick Parker

1-Apr-03 11:29

Check out

<a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmfc98/html/vcrefcstringinsert.asp">CString::Insert</a>[<a target=_blank title='New Window' href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmfc98/html/vcrefcstringinsert.asp">^</a>]

-Nick Parker

static text formatting

RalfPeter1-Apr-03 8:05

RalfPeter

1-Apr-03 8:05

Any one knows how to format text from a static control, such as text in a dialog box. I'd like to be able to bold, subscript, italicize,... the text. Thx,
Ralf.

ralf.riedel@usm.edu

Re: static text formatting

C^hris L^osinger1-Apr-03 8:14

C^hris L^osinger

1-Apr-03 8:14

try looking here: http://www.codeproject.com/staticctrl/[^]

-c

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MFC + ATL

Anonymous1-Apr-03 7:52

Anonymous

1-Apr-03 7:52

I have MDI MFC+ATL app. Application supports scripting ( SmartHost etc) VbScript/Jscript.

Vb/J Script requires all calls to come from the same thread (except InteruptThread)...

Obvious solution is to create dedicated thread, this thread will waitForSingleObject(command). Once command recieved thread will execute code and return data to caller thread.
Caller thread will be blocked via semaphore or event until execution completed.

Is there a similiar com solution? Multiple callers - single thread execution?

B

Header control in ListView

rosen1-Apr-03 7:33

rosen

1-Apr-03 7:33

Hello.
I have a very preposterous problem. I have a ListView class.
Sa i want when i click on a column in the header control, an event to be manipulated in my ListView class. So i thought the clear decision is to use ClassWizard and to add a message handler for the event HDN_ITEMCLICK :
this is the method generated by ClassView

<br />
void CRegDlg::OnItemclickList1(NMHDR* pNMHDR, LRESULT* pResult) <br />
{<br />
	HD_NOTIFY *phdn = (HD_NOTIFY *) pNMHDR;<br />
	// TODO: Add your control notification handler code here<br />
	AfxMessageBox("a"); // for example<br />
	*pResult = 0;<br />
}<br />

Yes, but ... noo. When i press a header control column nothing happens ?
Why it is?
Can anyone help me.

explorer bar

mweiss1-Apr-03 7:14

mweiss

1-Apr-03 7:14

I've created an explorer bar two different ways...one way using registry settings and another using ATL and COM. Both ways show up when I click a button on the toolbar. I want to show an HTML page in the explorer bar. This is easy with the registry settings, but I need to do other processing as well, which I don't know how to do with the registry solution. The ATL COM way I don't know how to get the HTML page to show up but I can do the other processing.

My question is: does anyone know either know how to get ahold of the explorer bar that is created by the registry entries so I can do additional processing (if that's even possible)? Or can anyone give me some advice on how to show an HTML page in the explorer bar I've created using ATL COM?

Thanks for your help.

Melinda

winpcap problem

summo1-Apr-03 6:41

summo

1-Apr-03 6:41

I am trying to set the fields of the packet which I am sending using winpcap But I am unable to set the true fields of ethernet packet using winpcap.
These fields are

pcap_data[0]...........pcap_data[5] //ethernet destination address
pcap_data[6]...........pcap_data[11] //ethernet source address

I am setting in these fields with the Mac of source and destination like
1 pcap_data[0]=00;
2 pcap_data[1]=50;
3 pcap_data[0]=8D;

But line 3 is giving errors I do not know exactly what to fill I s it Hexadecimal or binary or anything else

Please help me with certain example that may be sending packet or help me in solving the problem.

Reply me soon

Video Conference App

extremalis1-Apr-03 6:38

extremalis

1-Apr-03 6:38

Hi, I am a newbie to programming. Need to program a video conference application, that sends the video from the local to the other side connected by LAN. Needs to preview the window locally as well.

I have managed to do that, using <vfw.h>, using Win32 API programming style. Only the preview i mean.

Having difficulty to get the "previewed" video to be sent over the other end, using sockets i suppose. Dun have any idea how to implement this.

I looked up Netmeeting SDK already, but am not able to make use of that, because i need to tweak my video frames when they are being sent out, according to different configurations. Thus, i have to implement my own.

On a tight schedule now, everything with the GUI needs to be done in 3 weeks time, still blur with programming. Hope some kind soul out there able to shed some light.

Thanks and regards.

p.s-> pls send email to <extremalis@catcha.com>

extremalis

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