C / C++ / MFC Discussion Boards

SanShou5-Oct-04 12:13

5-Oct-04 12:13

Hey all...

I am trying to write out a Japanese text string in a data file which was originally specified for ANSI text and used across several applications. Basically what was suggested was that I use UTF-8 to write out the text strings and read them back in. One of the constraints is that the current applications that read English only should still be able to read English data if this application writes it. However the old applications can punt on the Japanese until they are also updated.

I can figure out how to write from MBCS to UTF-8:

<br />
#ifndef UNICODE<br />
MultiByteToWideChar(CP_UTF8, dwFlags, lpMBCSStr, cbMBCS, lpWCStr, cchWCStr)<br />
#endif<br />

However we normally build in UNICODE using TCHAR, and it is normally UTF-16. However I just want to convert this one string from UTF-16 to UTF-8. Anyone ever done this?

You can also just call me insane and stupid as long as you can suggest a better approach. I don't mind being insulted if I can learn something. Big Grin | :-D

Brian

If you start a fire for a man, he will be warm for a day. If you start that same man on fire, he will be warm for the rest of his life.

Re: Switching TCHAR to UTF-8

Michael Dunn5-Oct-04 13:38

Michael Dunn

5-Oct-04 13:38

MultiByteToWideChar() is the right way to convert from UTF-16 to UTF-8. It doesn't matter what your UNICODE setting is because that API's input is always UTF-16 and the output is always a multi-byte encoding.

--Mike--
Personal stuff:: Ericahist | Homepage
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Visual Studio 2003 Migration question.

RickGavin5-Oct-04 11:47

RickGavin

5-Oct-04 11:47

Hi All,
I was looking to update from VS6 to VS2003 but I was told at one point that my code would then require XP ( latest MFC , etc ) to run. Is it possible to use VS 2003 but still compile a project so that it still runs on windows 95/2k, etc? without having to package a pile of new libs with it.

Is it just a matter of linking in the project settings?

Could anyone point me in the right direction as to how to set this up. Thanks for the help.

-Rick Confused | :confused:

Re: Visual Studio 2003 Migration question.

Michael Dunn5-Oct-04 11:50

Michael Dunn

5-Oct-04 11:50

RickGavin wrote:
but I was told at one point that my code would then require XP ( latest MFC , etc ) to run

That is wrong, you can target any OS with VC 7 just like with VC 6. However, if your VC 6 code uses the DLL version of MFC, be aware that the MFC 7 DLLs aren't as commonplace yet like mfc42.dll is, so more people will have to get those DLLs, either from your installer or MS.

--Mike--
Personal stuff:: Ericahist | Homepage
Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt
CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ
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Re: Visual Studio 2003 Migration question.

RickGavin5-Oct-04 12:31

RickGavin

5-Oct-04 12:31

Well I'll give it a go and see if i can make it work. Thanks for the info.

-Rick

STL warnings???

Bob Stanneveld5-Oct-04 9:46

Bob Stanneveld

5-Oct-04 9:46

Hello,

I'm using some of the stl template classes and std::string. When I compile, I get all sort of warnings from the stl libray.

Does aybody know a nice way to get rid of all these warnings instead of #pragma them all away?

Thanks in advance.

Multiply it by infinity and take it beyond eternity and you'll still have no idea about what I'm talking about.

Re: STL warnings???

Joaquín M López Muñoz5-Oct-04 9:56

Joaquín M López Muñoz

5-Oct-04 9:56

If you refer to warnings 4503 and 4786, these are completely harmless and #pragmaing them away is just fine. I don't think there's another way to get rid of them.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: STL warnings???

John M. Drescher5-Oct-04 10:17

John M. Drescher

5-Oct-04 10:17

Here is the way I get rid of this annoying compiler bug: http://www.codeproject.com/tools/stlfilt.asp [^]

John

Remove Unused Resource Id's

Ron Sanderson5-Oct-04 8:56

Ron Sanderson

5-Oct-04 8:56

Does anyone know of a utility that would scan my resource files, pick up the resource id's (like IDS_SOME_STRING) and then scan the .cpp files to see whether these ID's were actually used anywhere?

Ron Sanderson
Computer Associates
Senior Software Engineer
tel: +1 908 874-9772
fax: +1 908 874-9176
ron.sanderson@ca.com

Re: Remove Unused Resource Id's

2249175-Oct-04 17:17

224917

5-Oct-04 17:17

Is this wot you are looking for ResOrg from Anna-Jayne Metcalfe

There is no spoon.

mail

Re: Remove Unused Resource Id's

mahade15-Oct-04 19:38

mahade1

5-Oct-04 19:38

I think in the VC++ Editor itself, you have this functionality in View->Resource Symbols, where u can find all the IDS which are not used by ur application and remove them.

Regards,
Mahadevan.

SO_LINGER

Madmaximus5-Oct-04 8:45

Madmaximus

5-Oct-04 8:45

When can I set the SO_LINGER option on a socket? I’m using Windows XP Pro and Winsock.

Thanks in advance.
Ken

Hello World in random colors

...---...5-Oct-04 6:02

...---...

5-Oct-04 6:02

How can I efficiently display "Hello World" in a Windows App with each letter having it's own color, either random or in sequence.... thanks for your advice

SkunkedWorks

Re: Hello World in random colors

4apai5-Oct-04 6:59

4apai

5-Oct-04 6:59

Windows App. You want to display text on DC.
look out Device Contexts Overview.

4apai
There're no impossible tasks. There're tasks that required infinite period of execution time.

"clear" the transparent background rendering of an ActiveX control

bancavo5-Oct-04 5:54

bancavo

5-Oct-04 5:54

I am looking to "clear" the transparent background rendering of my ActiveX control when the OnDraw(...) function is called.

Here is my OnDraw(...) function:

pdc->SetBkMode(TRANSPARENT);
pdc->FillRect(rcBounds, CBrush::FromHandle((HBRUSH)GetStockObject(HOLLOW_BRUSH)));

with the HOLLOW_BRUSH i get the transparent background. If i use Animations in the ActiveX Control
the background don't clear (redrawn).

Has anyone ideas?

thanks

bancavo

Re: "clear" the transparent background rendering of an ActiveX control

Ryan Binns5-Oct-04 18:28

Ryan Binns

5-Oct-04 18:28

bancavo wrote:
pdc->FillRect(rcBounds, CBrush::FromHandle((HBRUSH)GetStockObject(HOLLOW_BRUSH)));

This call does nothing at all. You're filling a rectangle with a brush that has no colour. So no, the background won't get cleared or redrawn. You'll have to draw it some other way.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: "clear" the transparent background rendering of an ActiveX control

yaseeen5-Oct-04 22:16

yaseeen

5-Oct-04 22:16

thanks for your answer.

oh yes thats correct, sorry Roll eyes | :rolleyes:

I have an ActiveX with animated ellipses and rects etc.

I would like to merge my ActiveX in MS Powerpoint on a whole foil. Afterwards I would like to draw MS Powerpoint Items on it. Without a transparent background I cannot see the objects, because if the ActiveX get focus the the Items slips into the background.

It brings also nothing to change the order of the Items and the ActiveX in MS Powerpoint.

I need a transparent ActiveX Background, and that should be cleared if i call for example OnDraw()

I don't know how can i do this.
I would be very grateful for suggestions!

Re: "clear" the transparent background rendering of an ActiveX control

Ryan Binns6-Oct-04 0:58

Ryan Binns

6-Oct-04 0:58

yaseeen wrote:
I need a transparent ActiveX Background, and that should be cleared if i call for example OnDraw()

I'm not sure if you can do this. By definition, a transparent background is not drawn.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Is a CString char a numer or a char…?

anderslundsgard5-Oct-04 5:28

anderslundsgard

5-Oct-04 5:28

I would like to know if the first sign in a CString is a char or a number (e.g. ‘c’ or ‘3’)
Any tip how to find it easy…

_____________________________

...and justice for all

APe

Re: Is a CString char a numer or a char…?

BlackDice5-Oct-04 5:43

BlackDice

5-Oct-04 5:43

try IsDigit() and IsAlpha()

[insert witty comment here]

bdiamond Sleepy | :zzz:

Re: Is a CString char a numer or a char…?

anderslundsgard5-Oct-04 20:06

anderslundsgard

5-Oct-04 20:06

where do you find that IsDigit?
Is it a member of CString? Can't find it...

_____________________________

...and justice for all

APe

Re: Is a CString char a numer or a char…?

toxcct5-Oct-04 20:31

toxcct

5-Oct-04 20:31

<font style="color:blue;">#include</font> <font style="color:gray;"><string.h></font>
<font style="color:blue;">int</font> isdigit()
<font style="color:blue;">int</font> isalpha()
<font style="color:blue;">int</font> isalnum()
<font style="color:blue;">int</font> isprint()
<font style="color:green;">// And so many others...</font>

Do you know the standard library of C ? Confused | :confused:

And do you know this useful thing that we usually call MSDN ??? Confused | :confused:

You'd better look at this Wink | ;)

TOXCCT >>> GEII power

Re: Is a CString char a numer or a char…?

David Crow5-Oct-04 8:42

David Crow

5-Oct-04 8:42

While bdiamond most likely provided you with the answer, you might also want to know that the first character in a CString object is accessed via the [] operator, like:

CString str;
if ('c' == str[0])
    ...

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Activex in MFC DLL

p.malavolta5-Oct-04 5:23

p.malavolta

5-Oct-04 5:23

Hi, how can I use ACTIVEX control in a MFC dll if the main application is not MFC based ?

How to register environment variables for vc++ 6.0

nirmit5-Oct-04 4:38

nirmit

5-Oct-04 4:38

I want to registerenvironment vaiable for my project Sigh | :sigh:

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