C / C++ / MFC Discussion Boards

Blade[DMS]3-Oct-02 4:29

3-Oct-02 4:29

I have a hardware device which rattles the DSR line to let the PC know it is there...

Unfortunatly Windows 2000 seems to run an interrupt handler whenever the DSR line changes state, and when the DSR line is rattling at 10 microseconds, the PC is unable to cope with all these interrupts...

Is it possible to disable the interrupt on the DSR line in windows 2000 (and XP for that matter)...

(Clearing DSR in the COMM Mask makes no difference...)

Thanks...

Blade[DMS]

Re: Serial Port DSR Line Interrupt...

Jon Hulatt3-Oct-02 4:36

Jon Hulatt

3-Oct-02 4:36

10 microseconds ? ~ 10^5 Hz??? That's a bit quick... i'm not suprised it causes problems.

Anyway, methinks the only way you'll do this is with the DDK.

Jon

Signature space for rent. Apply by email to....

Re: Serial Port DSR Line Interrupt...

Blade[DMS]3-Oct-02 5:43

Blade[DMS]

3-Oct-02 5:43

Thanks, Thats what I thought... Frown | :(

We're working on changing the devices firmware to reduce the frequency a lot Big Grin | :-D

Shame... if it was DOS would could just clear the MSR interrupt flag in the IER...

Ah well...

Blade[DMS]

DHTML Edit Control

perellibre3-Oct-02 4:27

perellibre

3-Oct-02 4:27

Hi Colleagues,

Does anybody have any information about the methods of the DHTML Edit Control (ActiveX) from Microsoft? I look the online msdn, but I don't find anything.

My problem is to use this control inside my VisualC++ application. I want to create() it dynamically but I don't know its styles (I use the defaults). And I don't have html pages I want to set its content depending what the user needs, I have the html pages in a DB (only text, at the moment).

Wink | ;)

Thanks in advance for your help.

Best Regards,

Pere

Pere Llibre.

Re: DHTML Edit Control

Stephane Rodriguez.3-Oct-02 5:55

Stephane Rodriguez.

3-Oct-02 5:55

Lookup IHTMLEditDesigner and IHTMLEditHost.

You may download the DHTML Edit SDK separately, though it is now part of the platform SDK.

There is no other sample about it with in VS.NET cd.

I made a quick google search and found a fine article here[^].

sometimes it helps to look at the IL generated code
a MS guy on develop.com "answering" .NET issues

650-700, yes or no?

includeh103-Oct-02 4:16

includeh10

3-Oct-02 4:16

is it possible to do disk copy from 650M cd to 700M CD?
i tried several times but there always were some errors in the middle of copy. so i can copy any.

thx

includeh10

Re: 650-700, yes or no?

Jon Hulatt3-Oct-02 4:40

Jon Hulatt

3-Oct-02 4:40

Yes it is possible. Perhaps your source CD has copy protection.

And is this really a Visual C++ question???

Signature space for rent. Apply by email to....

??????????? !!!!!!!!!!!!!!!!!!!!!!! XXXXXXXXX

includeh103-Oct-02 10:50

includeh10

3-Oct-02 10:50

the source disk is not original one: my friend copied from somewhere on a 650M cd, i copy from the 650M cd to 700M cd. i tested, it is OK if copy it to 650M cd. but it is not OK if to 700M cd.

what is problem?

by the way, i am sure it is strong related to visual c++.
thx

includeh10

Re: ??????????? !!!!!!!!!!!!!!!!!!!!!!! XXXXXXXXX

Jörgen Sigvardsson3-Oct-02 14:25

Jörgen Sigvardsson

3-Oct-02 14:25

includeh10 wrote:
by the way, i am sure it is strong related to visual c++.

Only if the disc contains pirated copies of Visual C++ :P

--
Please state the nature of your medical emergency.

Huh? Help?

Ryan B.3-Oct-02 4:15

Ryan B.

3-Oct-02 4:15

file_length = (int) src_topic_file->GetLength();
total_topics = file_length / TOPIC_SIZE;
TopicVector.SetSize(total_topics);

for (int i=0; i<total_topics; i++)
{
	src_topic_file->Seek(TOPIC_SIZE*i,0);
	dwRead = src_topic_file->Read(buffer, TOPIC_SIZE);
	topic.SetTopicData((TOPIC*)buffer);
	TopicVector.Add(topic);
}</code>

TopicVector is CArray<CTopicItem,CTopicItem>
topic is CTopicItem as well (derived from CObject)

I have a Compile Error on the .Add line with
Cannot Convert Parameter 1 from CTopicItem to CTopicItem

am I doing something wrong?

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Huh? Help?

Tomasz Sowinski3-Oct-02 4:33

Tomasz Sowinski

3-Oct-02 4:33

Did you make CTopicItem copy c'tor protected or private? CArray::Add uses 2nd template argument as data type of its parameter, so basically you're passing CTopicItem by value, which involves copying.

Tomasz Sowinski -- http://www.shooltz.com

*** Si fractum non sit, noli id reficere. ***

Re: Huh? Help?

Ryan B.3-Oct-02 5:00

Ryan B.

3-Oct-02 5:00

Thank you.
(for making me revel in my own stupidity).
The class didnt have the = or copy constructor.

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Huh? Help?

Tomasz Sowinski3-Oct-02 5:11

Tomasz Sowinski

3-Oct-02 5:11

You may consider changing 2nd CArray template argument to const CTopicItem & anyway. This will change the way arguments are passed to CArray::Add and few other methods.

Tomasz Sowinski -- http://www.shooltz.com

*** Si fractum non sit, noli id reficere. ***

Re: Huh? Help?

Ryan B.3-Oct-02 7:45

Ryan B.

3-Oct-02 7:45

Can you please show me what my operator= function should look like?

Ryan Baillargeon
Software Specialist
Fuel Cell Technologies Inc.

Re: Huh? Help?

Tomasz Sowinski3-Oct-02 7:59

Tomasz Sowinski

3-Oct-02 7:59

It depends on the internals of CTopicItem of course.

Tomasz Sowinski -- http://www.shooltz.com

*** Si fractum non sit, noli id reficere. ***

Backward compatibility of VC07

Nilesh Karkhanis3-Oct-02 4:03

Nilesh Karkhanis

3-Oct-02 4:03

Hi,

While going through the Codeproject site I came across couple of very good demo projects which have been done in VC7 I did not find any .dsp/.dsw files in it instead there was .vcproj and .sln is there any way by which I can run the same project in VC6

thanks

- Nilesh Smile | :)

Re: Backward compatibility of VC07

Michael P Butler3-Oct-02 4:14

Michael P Butler

3-Oct-02 4:14

http://www.codeproject.com/tools/prjconverter.asp[^]

Michael

"I've died for a living in the movies and tv.
But the hardest thing I'll ever do is watch my leading ladies,
Kiss some other guy while I'm bandaging my knee."
-- The Unknown Stuntman

Re: Backward compatibility of VC07

Nilesh Karkhanis3-Oct-02 4:17

Nilesh Karkhanis

3-Oct-02 4:17

Thanks

- Nilesh Smile | :)

Modal Dialog Box

Anthony98873-Oct-02 4:01

Anthony9887

3-Oct-02 4:01

I'm trying to update a modal dialog box with the current time using win32 sdk programming.

Thanks

Re: Modal Dialog Box

Tomasz Sowinski3-Oct-02 4:07

Tomasz Sowinski

3-Oct-02 4:07

So what exactly is your problem?

Tomasz Sowinski -- http://www.shooltz.com

*** Si fractum non sit, noli id reficere. ***

Re: Modal Dialog Box

Michael P Butler3-Oct-02 4:18

Michael P Butler

3-Oct-02 4:18

You'll need to add a timer. Look up WM_TIMER

Michael

"I've died for a living in the movies and tv.
But the hardest thing I'll ever do is watch my leading ladies,
Kiss some other guy while I'm bandaging my knee."
-- The Unknown Stuntman

Template Wizard

Nilesh Karkhanis3-Oct-02 3:40

Nilesh Karkhanis

3-Oct-02 3:40

Hi,

How do I create a wizard template ( i.e. project template ) like what we see in visual studio. Confused | :confused:

- Nilesh

very simple isdigit question

ns3-Oct-02 3:42

3-Oct-02 3:42

It wont compile:

void CEnchangeView::OnButtonisdigit() 
{
CString x = "1234";

int nret = isdigit((int)x);
	
}

I'm trying to figure out which of my strings are numerical.

Appreciate your help,
ns

Re: very simple isdigit question

Nilesh Karkhanis3-Oct-02 3:45

Nilesh Karkhanis

3-Oct-02 3:45

Get each charecter from the CString with GetAt method and check it's ascii value.

hope that would help

- Nilesh

thank you. That works

ns3-Oct-02 3:55

3-Oct-02 3:55

Thanks for the hint. I think its fine, since its returning nonzero values (is a digit).

Appreciate your help,
ns

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