C / C++ / MFC

Marc Soleda30-Sep-09 3:23

30-Sep-09 3:23

Hi all,
do you know any good barcode generator lib? I've found some, including some good CP articles, but they are not enough as I need the maximum number of type of barcodes to cover: 1D and 2D.

Any option is welcome: paid or free&opensource.

thanks in advance,
Marc Soleda

... she said you are the perfect stranger she said baby let's keep it like this... Dire Straits

Re: Barcode generator library

includeh1030-Sep-09 5:14

includeh10

30-Sep-09 5:14

If you prepare to print barcode, you have to buy barcode fonts - only fonts can be printed clearly enough for scanner.

barcode fonts are code generators.

Re: Barcode generator library

Alan Balkany5-Oct-09 4:34

Alan Balkany

5-Oct-09 4:34

I'm using DLSoft's barcodes for .NET ([^]) which is adequate.

They cover a wide range of 1D and 2D barcodes, and the technical support is adequate.

Pure virtual Function ??

Game-point30-Sep-09 3:21

Game-point

30-Sep-09 3:21

Hi

Why we are using Pure virtual function and Which situation we used Pure virtual function ??

Thanks Cool | :cool:

Re: Pure virtual Function ??

David Crow30-Sep-09 3:25

David Crow

30-Sep-09 3:25

See here.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: Pure virtual Function ??

CPallini30-Sep-09 7:14

CPallini

30-Sep-09 7:14

We're building interfaces using pure virtual functions, and yes, we used pure virtual functions mostly when we needed interfaces. Roll eyes | :rolleyes:

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

[My articles]

How to know that the programmatically that the current user is logged on through local machine or through Remote session ?

Kushagra Tiwari30-Sep-09 3:10

Kushagra Tiwari

30-Sep-09 3:10

I wanted to know that is there any way for an application to know that if the logged on user is on local machine or on Remote session ??

Regards,
Kushagra

I hate coding but I luv to develop Smile | :)

Re: How to know that the programmatically that the current user is logged on through local machine or through Remote session ?

David Crow30-Sep-09 3:30

David Crow

30-Sep-09 3:30

I've got no way to verify this, but have you tried NetUserGetInfo()? You might also find something in the Remote Desktop Services API.

Re: How to know that the programmatically that the current user is logged on through local machine or through Remote session ?

kilt30-Sep-09 4:30

kilt

30-Sep-09 4:30

Just use System apis (Win32 FAQ)

Re: How to know that the programmatically that the current user is logged on through local machine or through Remote session ?

Randor 30-Sep-09 19:49

Randor

30-Sep-09 19:49

Read the %SessionName% environment variable and see if it contains the characters 'RDP'

http://www.codeproject.com/Messages/2090000/Re-Detecting-Remote-Desktop-Events.aspx[^]

Best Wishes,
-David Delaune

how convert char[] to LPWSTR for create file !?

hadi kazemi30-Sep-09 2:34

hadi kazemi

30-Sep-09 2:34

hi
i use function waveOpen that create one wave file. this function get name of file in LPWSTR type.

i generate name of file with below code:

[code]
LPWSTR fileNameLPW;
char fileNameStr[20];
int indexOfFile;

sprintf(fileNameStr,"NEWFILE%d.WAVE",indexOfFile);

CreateWave(fileNameLPW);

[/code]

now how can i copy fileNameStr to fileNameLPW !?

Re: how convert char[] to LPWSTR for create file !?

Hristo-Bojilov30-Sep-09 2:39

Hristo-Bojilov

30-Sep-09 2:39

You could use MultiByteToWideChar for example. Smile | :)

Life is a stage and we are all actors!

Re: how convert char[] to LPWSTR for create file !?

Richard MacCutchan30-Sep-09 2:44

Richard MacCutchan

30-Sep-09 2:44

hadi kazemi wrote:
now how can i copy fileNameStr to fileNameLPW !?
Quote Selected Text

Well you should start by using all wide character functions, then fileNameLPW is redundant e.g.

WCHAR fileNameStr[20];
int indexOfFile;

wsprintf(fileNameStr,L"NEWFILE%d.WAVE",indexOfFile);

CreateWave(fileNameStr);

Re: how convert char[] to LPWSTR for create file !?

Joe Woodbury30-Sep-09 6:08

Joe Woodbury

30-Sep-09 6:08

That should be swprintf or wsprintfW

(or use TCHAR instead of WCHAR and let the compiler macros pick the right windows function.)

Re: how convert char[] to LPWSTR for create file !?

Richard MacCutchan30-Sep-09 6:21

Richard MacCutchan

30-Sep-09 6:21

Joe Woodbury wrote:
That should be swprintf or wsprintfW

I checked my spelling carefully before posting, and still got it wrong Mad | :mad:

Thanks for correcting it.

same name macro with same

LoveneetSingh30-Sep-09 2:20

LoveneetSingh

30-Sep-09 2:20

hello coder
Is it posile to define same name macro in c project
like folloing

<br />
test1.h<br />
#define process (a&4) <br />
test2.h<br />
#define process (a&4) <br />
<br />

Re: same name macro with same

Richard MacCutchan30-Sep-09 2:45

Richard MacCutchan

30-Sep-09 2:45

What are you trying to achieve here, this makes no sense?

Re: same name macro with same

Maximilien30-Sep-09 3:54

Maximilien

30-Sep-09 3:54

maybe, but the compiler/preprocessor will probably report duplicate something.

But you could do something like (not really test, but I've seen code like in out stuff):

in test1.h

#ifndef process
#define process (a&4)
#endif

and in test2.h

#ifdef process
#undef process
#define process (a&4)
#endif

This signature was proudly tested on animals.

Re: same name macro with same

Richard MacCutchan30-Sep-09 6:23

Richard MacCutchan

30-Sep-09 6:23

I still have no idea what you are trying to achieve Confused | :confused:

How to implement copy and paste in edit box in MFC

deadlyabbas30-Sep-09 2:00

deadlyabbas

30-Sep-09 2:00

I am having a class which is inheriting CEdit class ..........
But when I try to do ctrl c and ctrl v in the edit box of my dialog it does not perform copy paste.
but if I right click and then copy and paste then it is working fine.

Re: How to implement copy and paste in edit box in MFC

includeh1030-Sep-09 5:21

includeh10

30-Sep-09 5:21

MFC dialog some times blocks keyboard messages for its controls - really no good.

You can override key-down message of CEdit to see if CTRL-C is sent to CEdit, if not, use PreTranslateMessage(...) of dialog to send messages you need to the CEdit.

Re: How to implement copy and paste in edit box in MFC

Richard MacCutchan30-Sep-09 6:25

Richard MacCutchan

30-Sep-09 6:25

includeh10 wrote:
MFC dialog some times blocks keyboard messages for its controls - really no good.

I thought there was someting in resource files for defining a connection between particular key combinations and commands; ACCELERATORS or similar?

Removing manifest entry

KASR130-Sep-09 1:50

KASR1

30-Sep-09 1:50

How can we remove/rename a manifest entry programatically?

Re: Removing manifest entry

Randor 30-Sep-09 19:57

Randor

30-Sep-09 19:57

A manifest is simply a resource stored in the .rsrc resource section of the executable. You can modify/update or remove it with the UpdateResource Function[^]. You need to call it with lpType argument set as RT_MANIFEST. RT_MANIFEST is #defined as integer 24.

Best Wishes,
-David Delaune

How to implement Ctrl C and Ctrl V in MFC

deadlyabbas30-Sep-09 1:20

deadlyabbas

30-Sep-09 1:20

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