what kind of window can have a caret? - C / C++ / MFC Discussion Boards

Re: how do we create one dialog box from another

Hamid_RT8-Apr-08 22:08

Hamid_RT

8-Apr-08 22:08

For make a dialog you can use of CreateWindow or CDialog class.

convert an array unsigned char to a string

Kogee San8-Apr-08 0:44

Kogee San

8-Apr-08 0:44

Hello

I need help on how to convert an array which its datatype is unsigned char to a string. The scenario is like this. I detect the mac address of a computer using GetAdaptersInfo API. So the return result of the call is the current MAC address which is available and the return Mac address is an unsigned char. So I can print the MAC address by using this code below :-

 <br />
<br />
static void showMACArray(unsigned char MACData[])<br />
{<br />
		<br />
	printf("%02X-%02X-%02X-%02X-%02X-%02X\n", <br />
		MACData[0], MACData[1], MACData[2], MACData[3], MACData[4], MACData[5]);<br />
}<br />

I want to print out as such that the Mac Data is in a string just like the code below :-

<br />
<br />
printf("The Mac address would be %s\n", MACData);<br />
<br />

I understand that i must concatenate each of the MACData[] array so that it combines together using strcat(). However, before using strcat(), i must convert each of the MACData unsigned char array to a string so that it can support the strcat() function. How can I solve this? Thank you and your help is really appreciated.

Re: convert an array unsigned char to a string

CPallini8-Apr-08 0:58

CPallini

8-Apr-08 0:58

Alternatives:
- sprintf [^].
- CString::Format [^]
- Write you own converter: it is a simple programming exercise.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: convert an array unsigned char to a string

C^hris L^osinger8-Apr-08 1:00

C^hris L^osinger

8-Apr-08 1:00

char buf[20];
snprintf(buf, 20, "%02X-%02X-%02X-%02X-%02X-%02X\n",
MACData[0], MACData[1], MACData[2], MACData[3], MACData[4], MACData[5]);
printf("MACAddr = %s\n", buf);

image processing toolkits | batch image processing

Addin issue: OnConnection is not getting called

VC_RYK8-Apr-08 0:23

VC_RYK

8-Apr-08 0:23

Hi,

We have written a ATL COM addin for MS word. We have found that events are called for 1st instance of word document. When we open another document then no event is called. If we close all word docs and open a new word document again, event is generated. We futher digging we found that,for first instance OnConnection() is called, for 2nd , 3rd instance it is not called.

Please help me out.

regards
RYK

Re: Addin issue: OnConnection is not getting called

led mike8-Apr-08 4:31

led mike

8-Apr-08 4:31

VC_RYK wrote:
Please help me out.

With what? You think we can make word fire the events when documents are opened? This is Code Project not the Magic Shop.

led mike

Re: Addin issue: OnConnection is not getting called

VC_RYK8-Apr-08 21:01

VC_RYK

8-Apr-08 21:01

Hi
From This link u can get the code
http://support.microsoft.com/kb/230689
and this works only for a single document which open first but i want to work for every document.

With regards
RYK

what kind of window can have a caret?

code_discuss8-Apr-08 0:02

code_discuss

8-Apr-08 0:02

I find that edit box has a caret but button doesn't.
What's the main differenct of them?

Re: what kind of window can have a caret?

Maximilien8-Apr-08 0:09

Maximilien

8-Apr-08 0:09

well, duh.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: what kind of window can have a caret?

code_discuss8-Apr-08 0:46

code_discuss

8-Apr-08 0:46

Re: what kind of window can have a caret?

BadKarma8-Apr-08 1:15

BadKarma

8-Apr-08 1:15

Thats easy,

the CBugsBunnyWnd Poke tongue | ;-P

codito ergo sum

Re: what kind of window can have a caret?

Rajesh R Subramanian8-Apr-08 2:43

Rajesh R Subramanian

8-Apr-08 2:43

Isn't this kind of obvious? You'll have a caret only where there is a text-area (where you could possibly type and the letters appear). What possibly made you ask such a question?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: what kind of window can have a caret?

Michael Schubert8-Apr-08 4:21

Michael Schubert

8-Apr-08 4:21

I bet he can almost smell your angry gas... Poke tongue | ;-P

Re: what kind of window can have a caret?

Rajesh R Subramanian8-Apr-08 22:10

Rajesh R Subramanian

8-Apr-08 22:10

Probably yes. Laugh | :laugh:

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: what kind of window can have a caret?

Mark Salsbery8-Apr-08 6:35

Mark Salsbery

8-Apr-08 6:35

You can use the caret in any window you want to.

Since a caret is generally used to mark an insertion point, it only really makes sense to use
it where the user can insert something.

Carets[^]

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: what kind of window can have a caret?

Hamid_RT10-Apr-08 6:51

Hamid_RT

10-Apr-08 6:51

Caret is for text and editbox is for enter the textes but I guess your intent is focus,right?

hook the WM_PRINTCLIENT evenet

micutzu8-Apr-08 0:02

micutzu

8-Apr-08 0:02

Hello,

Can anyone point me a smaple that shows me how to hook the WM_PRINTCLIENT event.

Thank you!

Re: hook the WM_PRINTCLIENT evenet

code_discuss8-Apr-08 0:08

code_discuss

8-Apr-08 0:08

http://www.fengyuan.com/article/wmprint.html[^]

and I strongly suggest you buy his book.

Re: hook the WM_PRINTCLIENT evenet

micutzu8-Apr-08 0:27

micutzu

8-Apr-08 0:27

Thank you!

Can you tell me (I am not sure) if this event WM_PRINTCLIENT is related with the user pressing Print button?

I want to make sure that I get this event when the user want to print a page.

System Shutdwon

john56327-Apr-08 23:58

john5632

7-Apr-08 23:58

Hi,
Follwoing code is not working for shutting down a system.

if(ExitWindowsEx(EWX_REBOOT|EWX_FORCE,0))
AfxMessageBox(_T("Restart"));
else
{
if(InitiateSystemShutdownEx(NULL,NULL,NULL,FALSE,TRUE,NULL))
AfxMessageBox(_T("Restart1"));
}

Re: System Shutdwon

Rajesh R Subramanian8-Apr-08 3:43

Rajesh R Subramanian

8-Apr-08 3:43

Did you check the return value of ExitWindowsEx()?

See this secret link: How to shut down the system[^]

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: System Shutdwon

David Crow8-Apr-08 3:58

David Crow

8-Apr-08 3:58

pther wrote:
Follwoing code is not working for shutting down a system.

Ok. So what's it doing?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: System Shutdwon

Hamid_RT8-Apr-08 22:05

Hamid_RT

8-Apr-08 22:05

See http://www.codeproject.com/KB/system/StayON.aspx[^].

global and static object

George_George7-Apr-08 23:40

George_George

7-Apr-08 23:40

Hello everyone,

This is what mentioned in the book, ATL Internals about why Release function of CComPtr and CComQIPtr is needed for global and static variable.

--------------------
The destructor for global and static variable only executes after the main function exits, long after CoUninitialize runs, (That is, if it runs at all. You must link with the C++ runtime library for the constructors and destructors of global and static variable to run.) ATL itself doesn't use the C/C++ runtime library; thus, by default, ATL components don't link with the library.
--------------------

I do not quite understand what means "must link with the C++ runtime library for the constructors and destructors ... to run"? Could anyone help please?

thanks in advance,
George

Re: global and static object [modified]

Matthew Faithfull8-Apr-08 0:23

Matthew Faithfull

8-Apr-08 0:23

Try this experiment and you will see.
Find or write some code like this

<br />
<br />
//.h<br />
class CSomeclass<br />
{<br />
  public:<br />
  static int MyMember;<br />
};<br />
<br />
//.cpp<br />
//PLACE A BREAKPOINT ON THE LINE BELOW<br />
int CSomeclass::MyMember = 42;<br />
<br />

Place a breakpoint on the assignment and also one at the beggining of your code, in main or InitiInstance or whatever.
Run under Debug and you may be surprised at what happens. When the debugger stop take a look at the call stack and the order in which the breakpoints are hit. Smile | :)

Bootstrapping an MSVC C++ program is about 10,000x more complex than most people realize.

Nothing is exactly what it seems but everything with seems can be unpicked.

modified on Tuesday, April 8, 2008 6:40 AM

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