dev-cpp-users Mailing List for Dev-C++

Vivek Jishtu wrote:

>What am I missing out?
>
>    void myfun(First &obj)
>  
>
This line receives a non-const reference. You can't get a non-const 
reference from a temporary object.

> Obj2.myfun(First());
>  
>
Ta-da!!! Here you are using a reference to a temporary object.


Daniel K. O.

according to the link, C++ applications using libstdc++ are not required =
to be gpl either:

The Code: Runtime GPL

The source code of libstdc++-v3 is distributed under version 2 of the =
GNU General Public License, with the so-called "runtime exception," as =
follows (or see any header or implementation file):

   As a special exception, you may use this file as part of a free =
software
   library without restriction.  Specifically, if other files =
instantiate
   templates or use macros or inline functions from this file, or you =
compile
   this file and link it with other files to produce an executable, this
   file does not by itself cause the resulting executable to be covered =
by
   the GNU General Public License.  This exception does not however
   invalidate any other reasons why the executable file might be covered =
by
   the GNU General Public License.

Hopefully that text is self-explanatory. If it isn't, you need to speak =
to your lawyer, or the Free Software Foundation.

Q: So any program which uses libstdc++ falls under the GPL?
A: No. The special exception permits use of the library in proprietary =
applications.=20





OROSZI Bal=E1zs wrote:
> Carlo wrote:
>> dev-cpp comes with a GPL licensing scheme; this means that you can
>> freely use it and redistribute it - together with sorces and a copy
>> of the GPL license. Moreover, you can modify it or take pieces of
>> code from it and insert them in a new work or link towards dynamic
>> libraries but, according to GPL, the derived work *must* be GPL'd.
>=20
> Read here:
> http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/license.html
>=20
> And if you don't use C++, just C, then you are also allowed to make
> closed source applications.
> So there is no problem with GCC about licensing. But DirectX is going
> to give you troubles. Search the archives of this mailing list around
> 7th of September this year and a little before for more mails about
> this.=20
>=20
>> When you use dev-cpp to edit, debug and compile your code you are
>> only using a GPL application and, as long as your software does not
>> contain pieces of code nor is dinamically linked towards dev-cpp
>> libraries, you can release your work with the license you prefer
>> (even a commercial one).
>=20
> To be precise, there is no such thing: "dev-cpp libraries". Dev-C++
> is ONLY a frontend, a GUI for GCC, nothing more. Go to
> http://www.mingw.org for details about the libraries. And
> you may choose a commercial license, even if you link with MinGW
> libraries.=20
>=20
> So you may develop commercial applications with Dev-C++. Just take
> into account, that DirectX has a different license.

reid

Carlo wrote:
> dev-cpp comes with a GPL licensing scheme; this means that you can
> freely use it and redistribute it - together with sorces and a copy of
> the GPL license. Moreover, you can modify it or take pieces of code fro=
m
> it and insert them in a new work or link towards dynamic libraries but,
> according to GPL, the derived work *must* be GPL'd.

Read here:
http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/license.html

And if you don't use C++, just C, then you are also allowed to make close=
d source=20
applications.
So there is no problem with GCC about licensing. But DirectX is going to =
give you=20
troubles. Search the archives of this mailing list around 7th of Septembe=
r this year and a=20
little before for more mails about this.

> When you use dev-cpp to edit, debug and compile your code you are only
> using a GPL application and, as long as your software does not contain
> pieces of code nor is dinamically linked towards dev-cpp libraries, you
> can release your work with the license you prefer (even a commercial on=
e).

To be precise, there is no such thing: "dev-cpp libraries". Dev-C++ is ON=
LY a frontend, a=20
GUI for GCC, nothing more. Go to http://www.mingw.org for details about t=
he libraries. And=20
you may choose a commercial license, even if you link with MinGW librarie=
s.

So you may develop commercial applications with Dev-C++. Just take into a=
ccount, that=20
DirectX has a different license.

--
Greetings,
   Bal=E1zs

> int main()
> {
>  Second Obj2;
>  Obj2.myfun(First());
>  return 0;
> }

Without seeing the error-messages I think the problem is the temporarily
instantiated object of class First in Obj2.myfun(First()).

myfun() takes a reference to a First object, which in the above sample
is a temporary instance.

Peter

This is just a sample code that compiles using the
Microsoft C++ compiler but seems to be giving problems
when compiled in Dev-C++. The problem is that I am
trying to port a library to Dev-C++ but this kind of
functionality has been used in the library and I am
getting all sorts or wierd errors because of this.

What am I missing out?

Regards,
Vivek Jishtu

------------------------------------------------

#include <iostream>

class First{

public:
     void SomeWork()
     {
        std::cout <<"Inside SomeWork";
     }
};

class Second
{

public:
    void myfun(First &obj)
    {
      obj.SomeWork();
    }
};

int main()
{
 Second Obj2;
 Obj2.myfun(First());
 return 0;
}

__________________________________________________
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Jean.

----- Original Message ----- 
From: <dev...@li...>
To: <dev...@li...>
Sent: Wednesday, September 29, 2004 11:14 PM
Subject: Dev-cpp-users digest, Vol 1 #2168 - 4 msgs


> Send Dev-cpp-users mailing list submissions to
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Dev-cpp-users digest..."
> 
> 
> Today's Topics:
> 
>    1. Windows Volume (get/set) (A_B...@gm...)
>    2. Question about the Dev-C++ license (Christoph Peters)
>    3. weird warning about gcov (Guillermo Gutierrez)
>    4. Any idea about other mailing lists that deal with posix threads (on Linux). (Rio Mascarenhas)
> 
> --__--__--
> 
> Message: 1
> From: A_B...@gm...
> To: dev...@li...
> Date: Wed, 29 Sep 2004 17:14:31 +0200
> Subject: [Dev-C++] Windows Volume (get/set)
> 
> --Alt-Boundary-20458.314299
> Content-type: text/plain; charset=US-ASCII
> Content-transfer-encoding: 7BIT
> Content-description: Mail message body
> 
> Hi,
> I whant to get and set the main volume.
> Well, I mean the value from the volume control at the tray bar from windows.
> I'm sure it could be done with the Windows API, but I don't know how...
> I tried it like this:
> 
> double GetWaveVolumePercent(bool blLeft){
>   unsigned long ulCurrentVolume = 0;
>   if(waveOutGetVolume(0, (LPDWORD) &ulCurrentVolume) == MMSYSERR_NOERROR){
>     if(blLeft) return double(double(LOWORD(ulCurrentVolume))*100.0/65535.0);
>     else return double(double(HIWORD(ulCurrentVolume))*100.0/65535.0);
>   }
>   else return 0.0;
> }
> 
> bool SetWaveVolumePercent(double dlValue, bool blLeft){
>   unsigned long ulCurrentVolume = 0;
>   if(dlValue < 0.0) dlValue = 0.0;
>   else if(dlValue > 100.0) dlValue = 100.0;
>   if(waveOutGetVolume(0, (LPDWORD) &ulCurrentVolume) == MMSYSERR_NOERROR){
>     WORD ilNewVolume = int(double(65535.0)/100.0*dlValue);
>     if(blLeft) ulCurrentVolume = ulCurrentVolume & 0xFFFF0000 | ilNewVolume;
>     else ulCurrentVolume = ulCurrentVolume & 0x0000FFFF | ilNewVolume*0x10000;
>     return waveOutSetVolume(0, ulCurrentVolume) == MMSYSERR_NOERROR;
>   }
>   else return false;
> }
> 
> But this is not what I whant and doesn't work at all...
> I whant the main volume !!!
> 
> Any suggestions ???
> 
> thx, Acki
> 
> 
> --Alt-Boundary-20458.314299
> Content-type: text/html; charset=US-ASCII
> Content-transfer-encoding: 7BIT
> Content-description: Mail message body
> 
> <?xml  version="1.0" ?><html>
> <head>
> <title></title>
> </head>
> <body>
> <div align="left"><font face="Arial"><span style="font-size:10pt">Hi,</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">I whant to get and set the main volume.</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">Well, I mean the value from the volume control at the tray bar from windows.</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">I'm sure it could be done with the Windows API, but I don't know how...</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">I tried it like this:</span></font></div>
> <div align="left"><br/>
> </div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">double GetWaveVolumePercent(bool blLeft){</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; unsigned long ulCurrentVolume = 0;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; if(waveOutGetVolume(0, (LPDWORD) &amp;ulCurrentVolume) == MMSYSERR_NOERROR){</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; if(blLeft) return double(double(LOWORD(ulCurrentVolume))*100.0/65535.0);</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; else return double(double(HIWORD(ulCurrentVolume))*100.0/65535.0);</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; }</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; else return 0.0;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">}</span></font></div>
> <div align="left"><br/>
> </div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">bool SetWaveVolumePercent(double dlValue, bool blLeft){</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; unsigned long ulCurrentVolume = 0;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; if(dlValue &lt; 0.0) dlValue = 0.0;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; else if(dlValue &gt; 100.0) dlValue = 100.0;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; if(waveOutGetVolume(0, (LPDWORD) &amp;ulCurrentVolume) == MMSYSERR_NOERROR){</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; WORD ilNewVolume = int(double(65535.0)/100.0*dlValue);</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; if(blLeft) ulCurrentVolume = ulCurrentVolume &amp; 0xFFFF0000 | ilNewVolume;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; else ulCurrentVolume = ulCurrentVolume &amp; 0x0000FFFF | ilNewVolume*0x10000;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160;&#160;&#160; return waveOutSetVolume(0, ulCurrentVolume) == MMSYSERR_NOERROR;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; }</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">&#160; else return false;</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">}</span></font></div>
> <div align="left"><br/>
> </div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">But this is not what I whant and doesn't work at all...</span></font></div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">I whant the main volume !!!</span></font></div>
> <div align="left"><br/>
> </div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">Any suggestions ???</span></font></div>
> <div align="left"><br/>
> </div>
> <div align="left"><font face="Arial"><span style="font-size:10pt">thx, Acki</span></font></div>
> <div align="left"></div>
> </body>
> </html>
> 
> --Alt-Boundary-20458.314299--
> 
> 
> 
> --__--__--
> 
> Message: 2
> Date: Wed, 29 Sep 2004 17:53:06 +0200
> From: Christoph Peters <Chr...@we...>
> To:  dev...@li...
> Subject: [Dev-C++] Question about the Dev-C++ license
> 
> In the last months I created a 3D engine based on Direct3D. I compiled 
> it in Dev-C++ as dll. I intend to publish it in the internet. Of course 
> I'll show the users the license agreement of Dev-C++.
> Would it be legally if I publish it in the internet? And would the users 
> be allowed to sell games they made using this dll?
> I'd be thankful for a fast and obliging answer.
> With kind regards
> Christoph Peters.
> 
> 
> 
> --__--__--
> 
> Message: 3
> Date: Wed, 29 Sep 2004 12:44:02 -0700
> From: "Guillermo Gutierrez" <ggu...@ma...>
> To: <dev...@li...>
> Subject: [Dev-C++] weird warning about gcov
> 
> This is a multi-part message in MIME format.
> 
> ------_=_NextPart_001_01C4A65C.AC2D4A72
> Content-Type: text/plain;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
> 
> with mingw/gcc 3.4.2 on Dev-Cpp 4990, I get an odd message regarding =
> something called nul.gcda. Does anyone know what that this means:
> 
> Compiler: Default compiler
> Building Makefile: =
> "W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win"
> Executing  make...
> mingw32-make.exe -f =
> "W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win" all
> g++.exe -S Main.cpp -o nul -I"W:/Dev-Cpp/include/c++/3.4.2"  =
> -I"W:/Dev-Cpp/include/c++/3.4.2/mingw32"  =
> -I"W:/Dev-Cpp/include/c++/3.4.2/backward"  =
> -I"W:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"W:/Dev-Cpp/include"  =
> -I"W:/Dev-Cpp/include/c++"  -I"W:/Dev-Cpp/include/FL"  =
> -I"W:/Dev-Cpp/include/FLU"   =20
> -fexpensive-optimizations -O2=20
> Main.cpp:1: warning:`nul.gcda' is not a gcov data file=20
> windres.exe -i VaultVewer_private.rc --input-format=3Drc -o nul -O coff  =
> 
> Execution terminated
> Compilation successful
> 
> I also have MinGW-runtime 3.5, WinAPI 3.1, make-3.80.0-3, =
> bin-utils-2.15.91 on windows 2000 Pro
> 
> Guillermo Gutierrez
> Market Scan Information Systems
> Software Q.A. Supervisor
> (818) 575-2000 x2427
> ggu...@ma...
> 
> 
> ------_=_NextPart_001_01C4A65C.AC2D4A72
> Content-Type: text/html;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
> 
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
> <HTML>
> <HEAD>
> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
> charset=3Diso-8859-1">
> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
> 6.5.7226.0">
> <TITLE>weird warning about gcov</TITLE>
> </HEAD>
> <BODY>
> <!-- Converted from text/rtf format -->
> 
> <P><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">with mingw/gcc =
> 3.4.2 on Dev-Cpp 4990, I get an odd message regarding something called =
> nul.gcda. Does anyone know what that this means:</FONT></I></P>
> 
> <P><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">Compiler: Default =
> compiler</FONT></I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">Building Makefile: =
> &quot;W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win&quot;</FONT>=
> </I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">Executing&nbsp; =
> make...</FONT></I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">mingw32-make.exe =
> -f &quot;W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win&quot; =
> all</FONT></I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">g++.exe -S =
> Main.cpp -o nul -I&quot;W:/Dev-Cpp/include/c++/3.4.2&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include/c++/3.4.2/mingw32&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include/c++/3.4.2/backward&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include/c++&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include/FL&quot;&nbsp; =
> -I&quot;W:/Dev-Cpp/include/FLU&quot;&nbsp;&nbsp;&nbsp; </FONT></I></P>
> 
> <P><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans =
> MS">-fexpensive-optimizations -O2 </FONT></I>
> 
> <BR><I><FONT COLOR=3D"#0000FF" FACE=3D"Comic Sans MS">Main.cpp:1: =
> warning:`nul.gcda' is not a gcov data file</FONT> </I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">windres.exe -i =
> VaultVewer_private.rc --input-format=3Drc -o nul -O coff&nbsp; =
> </FONT></I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">Execution =
> terminated</FONT></I>
> 
> <BR><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">Compilation =
> successful</FONT></I>
> </P>
> 
> <P><I><FONT COLOR=3D"#000000" FACE=3D"Comic Sans MS">I also have =
> MinGW-runtime 3.5, WinAPI 3.1, make-3.80.0-3, bin-utils-2.15.91 on =
> windows 2000 Pro</FONT></I>
> </P>
> 
> <P><I><U><B><FONT COLOR=3D"#000080" SIZE=3D4 FACE=3D"Monotype =
> Corsiva">Guillermo Gutierrez</FONT></B></U></I>
> 
> <BR><I><B><FONT COLOR=3D"#000080" SIZE=3D4 FACE=3D"Monotype =
> Corsiva">Market Scan Information Systems</FONT></B></I>
> 
> <BR><I><B><FONT COLOR=3D"#000080" SIZE=3D4 FACE=3D"Monotype =
> Corsiva">Software Q.A. Supervisor</FONT></B></I>
> 
> <BR><I><B><FONT COLOR=3D"#000000" SIZE=3D4 FACE=3D"Monotype =
> Corsiva">(818) 575-2000 x2427</FONT></B></I>
> 
> <BR><B><U><FONT COLOR=3D"#0000FF" =
> FACE=3D"Arial">ggu...@ma...</FONT></U><I></I><I></I></B>
> </P>
> 
> </BODY>
> </HTML>
> ------_=_NextPart_001_01C4A65C.AC2D4A72--
> 
> 
> --__--__--
> 
> Message: 4
> Date: Wed, 29 Sep 2004 14:42:43 -0700 (PDT)
> From: Rio Mascarenhas <car...@ya...>
> To: dev...@li...
> Subject: [Dev-C++] Any idea about other mailing lists that deal with posix threads (on Linux).
> 
> Hi,
> I have some questions regarding using posix threads
> (on Linux). 
>         I know that this is not the forum for this.
> However I am hoping that someone would be able to
> point me to some mailing lists that deal with this
> topic. 
> 
> Regards,
> Rio
> 
> 
> 
> 
> __________________________________
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> 
> 
> 
> --__--__--
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> _______________________________________________
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> Dev...@li...
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> 
> 
> End of Dev-cpp-users Digest
> 

Christoph Peters ha scritto lo scorso 29/09/2004 17.53:

> In the last months I created a 3D engine based on Direct3D. I compiled 
> it in Dev-C++ as dll. I intend to publish it in the internet. Of course 
> I'll show the users the license agreement of Dev-C++.
> Would it be legally if I publish it in the internet? And would the users 
> be allowed to sell games they made using this dll?
> I'd be thankful for a fast and obliging answer.
> With kind regards
> Christoph Peters.
> 
I'm only a user of Dev-cpp, so please don't consider what I'm going to
say as *the verb*, but in my opinion, you must consider this:

dev-cpp comes with a GPL licensing scheme; this means that you can
freely use it and redistribute it - together with sorces and a copy of
the GPL license. Moreover, you can modify it or take pieces of code from
it and insert them in a new work or link towards dynamic libraries but,
according to GPL, the derived work *must* be GPL'd.

When you use dev-cpp to edit, debug and compile your code you are only
using a GPL application and, as long as your software does not contain
pieces of code nor is dinamically linked towards dev-cpp libraries, you
can release your work with the license you prefer (even a commercial one).

A final consideration: I'm not a lawyer, and this matter is not so
straitforward as someone can guess; I suggest you to take a look at GNU
homepage for more documentation (included the 13 or so page GPL license)
for more info.

cheers

Hi,
	I have some questions regarding using posix threads
(on Linux). 
        I know that this is not the forum for this.
However I am hoping that someone would be able to
point me to some mailing lists that deal with this
topic. 

Regards,
Rio



		
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with mingw/gcc 3.4.2 on Dev-Cpp 4990, I get an odd message regarding =
something called nul.gcda. Does anyone know what that this means:

Compiler: Default compiler
Building Makefile: =
"W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win"
Executing  make...
mingw32-make.exe -f =
"W:\Dev-Cpp\GuillermoGutierrez\VaultViewer\Makefile.win" all
g++.exe -S Main.cpp -o nul -I"W:/Dev-Cpp/include/c++/3.4.2"  =
-I"W:/Dev-Cpp/include/c++/3.4.2/mingw32"  =
-I"W:/Dev-Cpp/include/c++/3.4.2/backward"  =
-I"W:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"W:/Dev-Cpp/include"  =
-I"W:/Dev-Cpp/include/c++"  -I"W:/Dev-Cpp/include/FL"  =
-I"W:/Dev-Cpp/include/FLU"   =20
-fexpensive-optimizations -O2=20
Main.cpp:1: warning:`nul.gcda' is not a gcov data file=20
windres.exe -i VaultVewer_private.rc --input-format=3Drc -o nul -O coff  =

Execution terminated
Compilation successful

I also have MinGW-runtime 3.5, WinAPI 3.1, make-3.80.0-3, =
bin-utils-2.15.91 on windows 2000 Pro

Guillermo Gutierrez
Market Scan Information Systems
Software Q.A. Supervisor
(818) 575-2000 x2427
ggu...@ma...

In the last months I created a 3D engine based on Direct3D. I compiled 
it in Dev-C++ as dll. I intend to publish it in the internet. Of course 
I'll show the users the license agreement of Dev-C++.
Would it be legally if I publish it in the internet? And would the users 
be allowed to sell games they made using this dll?
I'd be thankful for a fast and obliging answer.
With kind regards
Christoph Peters.

Hi,
I whant to get and set the main volume.
Well, I mean the value from the volume control at the tray bar from windows.
I'm sure it could be done with the Windows API, but I don't know how...
I tried it like this:

double GetWaveVolumePercent(bool blLeft){
  unsigned long ulCurrentVolume = 0;
  if(waveOutGetVolume(0, (LPDWORD) &ulCurrentVolume) == MMSYSERR_NOERROR){
    if(blLeft) return double(double(LOWORD(ulCurrentVolume))*100.0/65535.0);
    else return double(double(HIWORD(ulCurrentVolume))*100.0/65535.0);
  }
  else return 0.0;
}

bool SetWaveVolumePercent(double dlValue, bool blLeft){
  unsigned long ulCurrentVolume = 0;
  if(dlValue < 0.0) dlValue = 0.0;
  else if(dlValue > 100.0) dlValue = 100.0;
  if(waveOutGetVolume(0, (LPDWORD) &ulCurrentVolume) == MMSYSERR_NOERROR){
    WORD ilNewVolume = int(double(65535.0)/100.0*dlValue);
    if(blLeft) ulCurrentVolume = ulCurrentVolume & 0xFFFF0000 | ilNewVolume;
    else ulCurrentVolume = ulCurrentVolume & 0x0000FFFF | ilNewVolume*0x10000;
    return waveOutSetVolume(0, ulCurrentVolume) == MMSYSERR_NOERROR;
  }
  else return false;
}

But this is not what I whant and doesn't work at all...
I whant the main volume !!!

Any suggestions ???

thx, Acki

* PThreads are characteristic of UNIX enviroments and are not native 
implementations in Windows XP. Afortunately, Red Hat guys ported to 
win32. You can find them here
http://sources.redhat.com/pthreads-win32/
This is a good choice, because the degree of portatibility is high. Of 
course you will need to link your program to the library.

* Another option is to use the Win32 API, that although breaking the 
portability is often a good choice: no extra libs are required and 
usually gives a good performance. A lot of
information and technical resources can be found at MSDN. A starting 
point could be:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/processes_and_threads.asp

* Finally, last but not least, if in addition to threads data structures 
such as liken lists and so on are used, a possibility is to use glib, ( 
http://www.gtk.org ) which brings a portable
thread implementation.

Hope this can help.

Regards,

Francisco P:



Rio Mascarenhas wrote:

>Hi,
>	I am using Dev-C++ version 4. I would like to know if
>its possible to compile multi-threaded programs with
>it on Windows (XP).
>I am not entirely new to C++, but I am new to
>multithreading. I have managed to get the basic
>programs running on Linux (with gcc), but compiling it
>on Dev-C++ gives me the error “pthread.h : No such
>file or directory.”
>
>Regards,
>Rio 
>
>
>
>
>
>		
>_______________________________
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>http://vote.yahoo.com
>
>
>-------------------------------------------------------
>This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
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>
>  
>

-- 
F.Palacios

  sta...@te...
  sta...@au...
  fra...@hi...

Hi,
	I am using Dev-C++ version 4. I would like to know if
its possible to compile multi-threaded programs with
it on Windows (XP).
I am not entirely new to C++, but I am new to
multithreading. I have managed to get the basic
programs running on Linux (with gcc), but compiling it
on Dev-C++ gives me the error “pthread.h : No such
file or directory.”

Regards,
Rio 





		
_______________________________
Do you Yahoo!?
Declare Yourself - Register online to vote today!
http://vote.yahoo.com

Hi,
Perhaps this is not the most appropriate place to
post these questions, but I think I'll have good
replies :-)

- Does anybody recommend a good book or site with a good text
on memory management in C/C++?
- Does anybody know the book "Memory as a programming
concept in C and C++" (Cambridge Press - link below)?
(http://titles.cambridge.org/catalogue.asp?isbn=0521520436)
There are some resources here 
"http://www.cas.mcmaster.ca/~franek/books.html". However,
I'd like to have some advice about the whole book.

I can comprehend the basics of that subject (pointers, memory
allocation, heap, stack etc, but I am interested to have
references with more details. I have some C/C++ books
and lots of URLs "bookmarked", but
all of them don't go too far on memory management as I would
like. One of my main issues is whether function
"main" and its local variables are allocated on the stack area as other 
functions.

Regards and TIA,
Rafael Charnovscki

My small girl today asked me to help her choose a decitation topic for
uni. Although i do some programming i didn't go to uni as such i
haven't written a decitation before and don't know how to choose a good
topic. I was wondering if anyone can help?

Something on Database programming will do.

thnx.


		
__________________________________
Do you Yahoo!?
Yahoo! Mail is new and improved - Check it out!
http://promotions.yahoo.com/new_mail

People who are registering to the list and isn't so good at reading the
automated mail response they receive, where it clearly says what mail
address they should send the confirm message to.

/Per W

On Tue, 28 Sep 2004, Eric wrote:

> what's this "confirm 145061" bit?

Thanks for help me out with conio , i have no problems making the code 
work .

printf("portability");

can you help me to print in the screen (console)  the coordinates of 
every single letter of the word  ???
i'm asking if exists any fnction to do that ....

PD: sorry my english ....

what's this "confirm 145061" bit?




Chaos is found in greatest abundance wherever order
is being sought. It always defeats order, because it is better organized


----- Original Message -----
From: "Rodrigo Erazo H" <kh...@mi...>
To: <dev...@li...>
Sent: Monday, September 27, 2004 1:03 PM
Subject: [Dev-C++] (no subject)


confirm 145061




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Rodrigo Erazo H wrote:
> anyone, can help me ? i need the file "conio.o", searching for it i've 
> installed borland c++,  (i tried to compile the .c with it and work but 
> unfortunately sleep(100) doesn't work)
> can you send me the file please ... or tell me how to compile this code 
> on dev c++

you can find conio as a devpak in webupdate or here:
http://devpaks.org/show.php?devpak=75

more info here about using it:
http://st.vse.cz/~xmolm04/packages.html#h6s0

flash tutorial showing how to install and use conio:
http://st.vse.cz/~xmolm04/console_tutor_1.htm
(cool :-) )

-- 
Regards,
     Michal

There is a devpack available for conio. I believe it was on devpaks.org, 
but I cannot be sure.

--Scott Simontis--



Daniel K. O. wrote:

> Rodrigo Erazo H wrote:
>
>> anyone, can help me ? i need the file "conio.o", searching for it 
>> i've installed borland c++,  (i tried to compile the .c with it and 
>> work but unfortunately sleep(100) doesn't work)
>> can you send me the file please ... or tell me how to compile this 
>> code on dev c++
>
>
> Maybe now it's time for you to learn a new word: "portability".
>
> conio is a Borland's library. Don't expect to have it outside 
> Borland's compilers.
> Having said that, there are some conio "wrappers", that make (most of) 
> it work.
> IIRC Dev-C++ already comes with a simple conio implementation that 
> have the basic functionalities, in the "include" dir. Just compile it 
> into a library and link it to your program.
> Also, give a look at http://conio.sourceforge.net
>
>
> Daniel K. O.
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
> Project Admins to receive an Apple iPod Mini FREE for your judgement on
> who ports your project to Linux PPC the best. Sponsored by IBM.
> Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Rodrigo Erazo H wrote:

> anyone, can help me ? i need the file "conio.o", searching for it i've 
> installed borland c++,  (i tried to compile the .c with it and work 
> but unfortunately sleep(100) doesn't work)
> can you send me the file please ... or tell me how to compile this 
> code on dev c++

Maybe now it's time for you to learn a new word: "portability".

conio is a Borland's library. Don't expect to have it outside Borland's 
compilers.
Having said that, there are some conio "wrappers", that make (most of) 
it work.
IIRC Dev-C++ already comes with a simple conio implementation that have 
the basic functionalities, in the "include" dir. Just compile it into a 
library and link it to your program.
Also, give a look at http://conio.sourceforge.net


Daniel K. O.

I'm sorry ... this is the code :

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main(int argc, char *argv[])
{
   cprintf( "Ejemplo de \"gotoxy\"\r\n\r\n" );
   sleep(100);
   clrscr();
   cprintf( "Ejemplo de \"gotoxy\"\r\n\r\n" );
   cprintf( "1ª línea" );
   cprintf( "2ª línea" );
   gotoxy( 5, 20 );
   cprintf( "3ª línea" );
   gotoxy( 20, 1 );
   cprintf( "4ª línea" );
   gotoxy( 1, 15 );
   cprintf( "Pulsa una tecla para continuar...\r\n" );
   getch();
 
}

anyone, can help me ? i need the file "conio.o", searching for it i've 
installed borland c++,  (i tried to compile the .c with it and work but 
unfortunately sleep(100) doesn't work)
can you send me the file please ... or tell me how to compile this code 
on dev c++
Thanks ....
PD: This is my first message to the list ... i hope i can help you later ...

confirm 145061