C / C++ / MFC

3-Oct-02 4:43

The LPCTSTR cast is totally unnecessary. CString provides one for you.

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

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

thanks everybody!

ns3-Oct-02 4:47

3-Oct-02 4:47

So is it true that any place I need a char*, I can use a CString directly? I'm not too sure about that ... Confused | :confused:

Appreciate your help,
ns

Tomasz Sowinski3-Oct-02 4:51

3-Oct-02 4:51

ns wrote:
So is it true that any place I need a char*, I can use a CString directly?

No. You can use CString directly whenever you need const char *. If you need char *, then use CString::GetBuffer.

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

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

Maximilien3-Oct-02 5:44

Maximilien

3-Oct-02 5:44

I think he meant that every where he wants to use a string ( char*, and all C type allocations business ) he can use a CString.

Max.

Jörgen Sigvardsson3-Oct-02 14:23

Jörgen Sigvardsson

3-Oct-02 14:23

Still, char* is not const char*. The round CString will just not fit in the square char*.

--
Please state the nature of your medical emergency.

Serial Port DSR Line Interrupt...

ColinDavies3-Oct-02 11:07

ColinDavies

3-Oct-02 11:07

ns wrote:
So is it true that any place I need a char*, I can use a CString directly? I'm not too sure about that ...

Sure, I do. Smile | :)

Regardz
Colin J Davies

Sonork ID 100.9197:Colin

You are the intrepid one, always willing to leap into the fray! A serious character flaw, I might add, but entertaining.
Said by Roger Wright about me.

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

Blade[DMS]

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.

Tomasz Sowinski3-Oct-02 4:33

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. ***

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.

Tomasz Sowinski3-Oct-02 5:11

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. ***

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.

Tomasz Sowinski3-Oct-02 7:59