dev-cpp-users — Dev-C++ users discussion list

Re: [Dev-C++] SDL_net with Mingw compiler

[St0fF 6. <st...@gm...>]

Well, I got SDL working, but not under Devcpp.  At the Dialogos Demo Party I
released a demo called "Verschrobene Farben" (try hunting vfwin_3.zip @
ftp.scene.org/pub/parties/2001/dialogos2001/demos ). I got it all compiled
under VC++6.  And actually I like working with an ide that "works" for my
purposes.  But I won't try to unsubscribe (cause it'd make all in here lol)
... I like coding, and it doesn't matter which ide I use (not that much...)
when we discuss coding stuff ...
Cheers, St0fF.

----- Original Message -----
From: <RPG...@ao...>
To: <dev...@li...>
Sent: Monday, November 05, 2001 1:42 AM
Subject: [Dev-C++] SDL_net with Mingw compiler


> Has anyone got it working?  The main SDL library comes with a zip
containing the precompiled .a for the mingw compiler.  However, there
SDL_net zip does not.  Could I compile the source into a .a file and use
that?  How would one go about doing that?  Or is there a more simple
solution?
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

RE: [Dev-C++] UNSUBSCRIBE ME NOW !!!!!

[Daniel G. <sp...@ho...>]

<html><div style='background-color:'><DIV>
<P>lol scary stuff.</P>
<P>how come people have a problem with the&nbsp;unsubscribing instruction? Should these ppl be let NEAR a compiler?<BR><BR></P></DIV>
<DIV></DIV>
<DIV></DIV>&gt;From: "Ioannis Vranos" <NO...@YA...>
<DIV></DIV>&gt;To: "Dev-C++" <DEV...@LI...>
<DIV></DIV>&gt;Subject: RE: [Dev-C++] UNSUBSCRIBE ME NOW !!!!! 
<DIV></DIV>&gt;Date: Tue, 6 Nov 2001 00:09:51 +0200 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;Don't panic. Don't panic! Don't Panic! DON'T PANIC! :) 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; &gt; UNSUBSCRIBE ME NOW !!!!! email bu...@ya... 
<DIV></DIV>&gt; &gt; 
<DIV></DIV>&gt; &gt; 
<DIV></DIV>&gt; &gt; 
<DIV></DIV>&gt; &gt; --- dev...@li... wrote: 
<DIV></DIV>&gt; &gt; &gt; Send Dev-cpp-users mailing list submissions to 
<DIV></DIV>&gt; &gt; &gt; dev...@li... 
<DIV></DIV>&gt; &gt; &gt; 
<DIV></DIV>&gt; &gt; &gt; To subscribe or unsubscribe via the World Wide Web, 
<DIV></DIV>&gt; &gt; &gt; visit 
<DIV></DIV>&gt; &gt; &gt; 
<DIV></DIV>&gt; &gt; &gt; 
<DIV></DIV>&gt; &gt; https://lists.sourceforge.net/lists/listinfo/dev-cpp-users 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;Now the above lines are funny aren't they? 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;Ioannis 
<DIV></DIV>&gt;* Ioannis Vranos 
<DIV></DIV>&gt;* Programming pages: http://www.noicys.f2s.com 
<DIV></DIV>&gt;* Alternative URL: http://run.to/noicys 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;_______________________________________________ 
<DIV></DIV>&gt;Dev-cpp-users mailing list 
<DIV></DIV>&gt;Dev...@li... 
<DIV></DIV>&gt;https://lists.sourceforge.net/lists/listinfo/dev-cpp-users 
<DIV></DIV></div><br clear=all><hr>Get your FREE download of MSN Explorer at <a href='http://go.msn.com/bql/hmtag_itl_EN.asp'>http://explorer.msn.com</a><br></html>

RE: [Dev-C++] UNSUBSCRIBE ME NOW !!!!!

[Ioannis V. <no...@ya...>]

Don't panic. Don't panic! Don't Panic! DON'T PANIC! :)


> UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...
> 
> 
> 
> --- dev...@li... wrote:
> > Send Dev-cpp-users mailing list submissions to
> > 	dev...@li...
> > 
> > To subscribe or unsubscribe via the World Wide Web,
> > visit
> > 
> >
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


Now the above lines are funny aren't they?


Ioannis
* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
* Alternative URL: http://run.to/noicys

[Dev-C++] UNSUBSCRIBE ME NOW !!!!!

[<bu...@ya...>]

UNSUBSCRIBE ME NOW !!!!!

UNSUBSCRIBE ME NOW !!!!! email bu...@ya...


UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...

UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...


UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...


UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...


UNSUBSCRIBE ME NOW !!!!!   email bu...@ya...



--- dev...@li... wrote:
> Send Dev-cpp-users mailing list submissions to
> 	dev...@li...
> 
> To subscribe or unsubscribe via the World Wide Web,
> visit
> 
>
https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> or, via email, send a message with subject or body
> 'help' to
> 	dev...@li...
> 
> You can reach the person managing the list at
> 	dev...@li...
> 
> When replying, please edit your Subject line so it
> is more specific
> than "Re: Contents of Dev-cpp-users digest..."
> 
> 
> Today's Topics:
> 
>    1. Re: Random numbers with MS Visual C++ (Kevin
> Wood)
>    2. Re: Drawing lines (Kevin Wood)
>    3. PLS UNSUBSCRIBE ME NOW!!!!!!!
> (=?iso-8859-1?q?Frank=20Akujobi?=)
>    4. RE: Drawing lines (???)
>    5. Re: Drawing lines (Jason Hardman)
>    6. SDL_net with Mingw compiler (RPG...@ao...)
> 
> --__--__--
> 
> Message: 1
> From: "Kevin Wood" <ke...@me...>
> To: <dev...@li...>
> Subject: Re: [Dev-C++] Random numbers with MS Visual
> C++
> Date: Sun, 4 Nov 2001 19:53:03 -0000
> 
> Hello everyone,
> 
> I think the Borland random function is not standard.
> Try this instead:
> 
> #include <stdlib.h>
> 
> int rand(void);
> // Random number generator.
> // rand returns successive pseudorandom numbers in
> the
> // range from 0 to RAND_MAX. 
> // The symbolic constant RAND_MAX is defined in
> stdlib.h.
> // rand returns the generated pseudorandom number.
> 
> void srand(unsigned seed);
> // Initializes the random number generator.
> 
> By the way, I don't think much of that font!
> 
> Regards,
>         Kevin.
> 
> 
> 
> 
> --__--__--
> 
> Message: 2
> From: "Kevin Wood" <ke...@me...>
> To: <dev...@li...>
> Subject: Re: [Dev-C++] Drawing lines
> Date: Sun, 4 Nov 2001 20:00:55 -0000
> 
> Hello,
> 
> You could, instead, set the current pen colour then
> use MoveToEx() and
> LineTo() functions.
> 
> Does anyone know if there is an online version of
> the Windows SDK help
> files?
> 
> 
> Regards,
>         Kevin.
> 
> 
> ----- Original Message -----
> From: Christiaan Scholtz <ck...@ia...>
> To: <dev...@li...>
> Sent: Sunday, November 04, 2001 10:46 AM
> Subject: Re: [Dev-C++] Drawing lines
> 
> 
> > Yes that works!
> > Heres my code to do it:
> > case WM_PAINT:
> >         SetPixel(GetDC(hwnd),100,100,0x00FF0000);
> >         SetPixel(GetDC(hwnd),101,100,0x00FF0000);
> >         SetPixel(GetDC(hwnd),102,100,0x00FF0000);
> >         SetPixel(GetDC(hwnd),103,100,0x00FF0000);
> >         SetPixel(GetDC(hwnd),104,100,0x00FF0000);
> >         break;
> >
> > Two things to note are that there are two extra
> 0's at the start of the
> > colour specifying the alpha value and that the
> colours are reversed.
> Instead
> > of specifying r,g,b they are blue, green, red
> (weird) in hex.
> >
> > -----Original Message-----
> > From: Kevin Wood <ke...@me...>
> > To: dev...@li...
> > <dev...@li...>
> > Date: Sunday, November 04, 2001 12:05 PM
> > Subject: Re: [Dev-C++] Drawing lines
> >
> >
> > >Hello everyone,
> > >
> > >I have copied the following from the Windows API
> help files. Does it
> help?
> > >
> > >-----------------------------------------
> > >
> > >The SetPixel function sets the pixel at the
> specified coordinates to the
> > >specified color.
> > >
> > >COLORREF SetPixel(
> > >
> > >    HDC hdc, // handle of device context
> > >    int X, // x-coordinate of pixel
> > >    int Y, // y-coordinate of pixel
> > >    COLORREF crColor  // pixel color
> > >   );
> > >
> > >
> > >Parameters
> > >
> > >hdc
> > >
> > >Identifies the device context.
> > >
> > >X
> > >
> > >Specifies the x-coordinate, in logical units, of
> the point to be set.
> > >
> > >Y
> > >
> > >Specifies the y-coordinate, in logical units, of
> the point to be set.
> > >
> > >crColor
> > >
> > >Specifies the color to be used to paint the
> point.
> > >
> > >Return Values
> > >
> > >If the function succeeds, the return value is the
> RGB value that the
> > >function sets the pixel to. This value may differ
> from the color
> specified
> > >by crColor; that happens when an exact match for
> the specified color
> cannot
> > >be found.
> > >If the function fails, the return value is -1. To
> get extended error
> > >information, call GetLastError.
> > >
> > >Remarks
> > >
> > >The function fails if the pixel coordinates lie
> outside of the current
> > >clipping region.
> > >Not all devices support the SetPixel function.
> For more information, see
> > >GetDeviceCaps.
> > >
> >
>
>---------------------------------------------------------------------------
> > -
> > >-------------
> > >
> > >Regards,
> > >        Kevin.
> > >
> > >
> > >
> > >----- Original Message -----
> > >From: Christiaan Scholtz <ck...@ia...>
> > >To: <dev...@li...>
> 
=== message truncated === 

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[Dev-C++] Drawing Lines (Let's put an end to this thread)...

[David N. <dne...@mi...>]

OK, it's obvious that the person that coded:

> case WM_PAINT:
>         SetPixel(GetDC(hwnd),100,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),101,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),102,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),103,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),104,100,0x00FF0000);
>         break;

is really a newbie.  Multiple calls to GetDC() with no handle reuse, no =
ReleaseDC() calls, and trying to plot pixels rather than the =
MoveToEx()/LineTo() calls.

In case he's wondering, here's the code to do what he wanted:

case WM_PAINT:
    {
        HDC hdc;
        PAINTSTRUCT ps;
        HBRUSH hbr,oldBrush;

        hdc=3DBeginPaint(hwnd,&ps); // get the device context during a =
WM_PAINT message
        hbr =3D CreateSolidBrush(RGB(0,0,0xff)); // create a brush for =
drawing
        oldBrush =3D (HBRUSH) SelectObject(hdc,hbr); // select the brush =
into the DC
        MoveToEx(hdc,100,100,NULL); // Move to the specified position
        LineTo(hdc,104,100); // draw the line
        SelectObject(hdc,oldBrush); // select the old brush back to the =
dc
        DeleteObject(hbr); // delete our temporary brush
        EndPaint(hwnd,&ps); // end the paint session
    }
    break;

Now all of these functions are documented either in the Win32 SDK help =
file previously mentioned at =
ftp://ftp.cs.virginia.edu/pub/lcc-win32/win32hlp.exe site.

Of course there's always the definitive source at Microsoft's MSDN site: =
http://msdn.microsoft.com/library/ where you'll find all of the info =
from the Win32 help file and then some.

I would suggest that the person trying to figure out how to plot pixels =
should pick up an introductory book to programming Win32 in C/C++ =
(Charles Petzold did a marvelous job in Programming Windows 95; it's C & =
C++ (but avoids MFC), explains all about how to use the Windows API for =
drawing), and then come back when he runs into a problem...

Dave

[Dev-C++] Drawing a line

[<mi...@ju...>]

There has been a lot of discussion concerning this in the mailing list.
If one hasn't familiarized themselves with Direct X, Open GL, etc, why
would one want to put a pixel on a screen? What good would that do? It
doesn't sound like a worthwhile venture. 
________________________________________________________________
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[Dev-C++] SDL_net with Mingw compiler

[<RPG...@ao...>]

Has anyone got it working?  The main SDL library comes with a zip containing the precompiled .a for the mingw compiler.  However, there SDL_net zip does not.  Could I compile the source into a .a file and use that?  How would one go about doing that?  Or is there a more simple solution?

Re: [Dev-C++] Drawing lines

[Jason H. <jas...@bt...>]

The colour values are reversed because of the way Intel chose to represent
numbers in memory. It uses Little Endian form (I think thats the right term)
basicaly the bytes are stored in the reverse order than what you would
expect. It makes sense in the fact the the smallest value will be at the
lower address, but we are used to reading left to right so it seems wrong.

Also there should be a macro for defining a COLORREF, which I think is
RGB(r,g,b), or something along those lines. Look it up in the Win32
Reference, which you can download from:
ftp://ftp.cs.virginia.edu/pub/lcc-win32/win32hlp.exe (a link I got of the
Dev-C++ resource site). Also look up LineTo, MoveToEx, and other GDI
(Graphics Device Interface) functions.

Jason.

----- Original Message -----
From: "Christiaan Scholtz" <ck...@ia...>
To: <dev...@li...>
Sent: Sunday, November 04, 2001 10:46 AM
Subject: Re: [Dev-C++] Drawing lines


> Yes that works!
> Heres my code to do it:
> case WM_PAINT:
>         SetPixel(GetDC(hwnd),100,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),101,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),102,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),103,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),104,100,0x00FF0000);
>         break;
>
> Two things to note are that there are two extra 0's at the start of the
> colour specifying the alpha value and that the colours are reversed.
Instead
> of specifying r,g,b they are blue, green, red (weird) in hex.
>
> -----Original Message-----
> From: Kevin Wood <ke...@me...>
> To: dev...@li...
> <dev...@li...>
> Date: Sunday, November 04, 2001 12:05 PM
> Subject: Re: [Dev-C++] Drawing lines
>
>
> >Hello everyone,
> >
> >I have copied the following from the Windows API help files. Does it
help?
> >
> >-----------------------------------------
> >
> >The SetPixel function sets the pixel at the specified coordinates to the
> >specified color.
> >
> >COLORREF SetPixel(
> >
> >    HDC hdc, // handle of device context
> >    int X, // x-coordinate of pixel
> >    int Y, // y-coordinate of pixel
> >    COLORREF crColor  // pixel color
> >   );
> >
> >
> >Parameters
> >
> >hdc
> >
> >Identifies the device context.
> >
> >X
> >
> >Specifies the x-coordinate, in logical units, of the point to be set.
> >
> >Y
> >
> >Specifies the y-coordinate, in logical units, of the point to be set.
> >
> >crColor
> >
> >Specifies the color to be used to paint the point.
> >
> >Return Values
> >
> >If the function succeeds, the return value is the RGB value that the
> >function sets the pixel to. This value may differ from the color
specified
> >by crColor; that happens when an exact match for the specified color
cannot
> >be found.
> >If the function fails, the return value is -1. To get extended error
> >information, call GetLastError.
> >
> >Remarks
> >
> >The function fails if the pixel coordinates lie outside of the current
> >clipping region.
> >Not all devices support the SetPixel function. For more information, see
> >GetDeviceCaps.
> >
>
>---------------------------------------------------------------------------
> -
> >-------------
> >
> >Regards,
> >        Kevin.
> >
> >
> >
> >----- Original Message -----
> >From: Christiaan Scholtz <ck...@ia...>
> >To: <dev...@li...>
> >Sent: Saturday, November 03, 2001 7:06 PM
> >Subject: [Dev-C++] Drawing lines
> >
> >
> >
> >But how do the graphics libraries put a pixel on the screen?  There has
to
> >be a way! I dont want to use a library
> >
> >
> >
> >_______________________________________________
> >Dev-cpp-users mailing list
> >Dev...@li...
> >https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

RE: [Dev-C++] Drawing lines

[??? <ch...@hi...>]

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LS0tDQo+IC0tLS0tLS0tLS0tLS0NCj4gDQo+IFJlZ2FyZHMsDQo+ICAgICAgICAgS2V2aW4uDQo+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[Dev-C++] PLS UNSUBSCRIBE ME NOW!!!!!!!

[<bu...@ya...>]

PLS UNSUBSCRIBE ME NOW!!!!!!!
PLS UNSUBSCRIBE ME NOW!!!!!!!

PLS UNSUBSCRIBE ME NOW!!!!!!!

bu...@ya...




 --- dev...@li...
wrote: > Send Dev-cpp-users mailing list submissions
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> Today's Topics:
> 
>    1. Re: opengl in dev-c++? (Jason)
> 
> --__--__--
> 
> Message: 1
> From: "Jason" <tux...@au...>
> To: <dev...@li...>
> Subject: Re: [Dev-C++] opengl in dev-c++?
> Date: Sun, 4 Nov 2001 12:53:16 -0600
> 
> Oh yea, I had the first one but I forgot the second
> two, now it compiles but
> when I try to run it it says it cannot find the
> dynamic link library
> GLAUX.dll. I don't know where to get this dll. Or
> else I am doing something
> wrong.
> 
> bana-sea-
> 
> ----- Original Message -----
> From: "Christiaan Scholtz" <ck...@ia...>
> To: "Jason" <tux...@au...>
> Sent: Sunday, November 04, 2001 12:07 PM
> Subject: Re: [Dev-C++] opengl in dev-c++?
> 
> 
> > It compiles fine over here, did you remember to
> > add -lopengl32 -lglu32 -lglaux to the project
> options?
> >
> > -----Original Message-----
> > From: Jason <tux...@au...>
> > To: dev...@li...
> > <dev...@li...>
> > Date: Sunday, November 04, 2001 7:19 PM
> > Subject: Re: [Dev-C++] opengl in dev-c++?
> >
> >
> > >Hmm... yes I already did that... This is what I
> have so far.
> > >
> > >bana-sea-
> > >
> > >----- Original Message -----
> > >From: Christiaan Scholtz
> > >To: dev...@li...
> > >Sent: Sunday, November 04, 2001 3:22 AM
> > >Subject: [Dev-C++] opengl in dev-c++?
> > >
> > >
> > >>I had the same problem. What you need to do is
> add #include <stdlib.h>
> at
> > >the top and it should work fine
> > >
> >
> 
> 
> 
> 
> --__--__--
> 
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
>
https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> 
> 
> End of Dev-cpp-users Digest 

=====
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Broadband Networks Laboratory 
Systems and Computer Engineering
Carleton University
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Cell:(613)286-3738

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Re: [Dev-C++] Drawing lines

[Kevin W. <ke...@me...>]

Hello,

You could, instead, set the current pen colour then use MoveToEx() and
LineTo() functions.

Does anyone know if there is an online version of the Windows SDK help
files?


Regards,
        Kevin.


----- Original Message -----
From: Christiaan Scholtz <ck...@ia...>
To: <dev...@li...>
Sent: Sunday, November 04, 2001 10:46 AM
Subject: Re: [Dev-C++] Drawing lines


> Yes that works!
> Heres my code to do it:
> case WM_PAINT:
>         SetPixel(GetDC(hwnd),100,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),101,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),102,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),103,100,0x00FF0000);
>         SetPixel(GetDC(hwnd),104,100,0x00FF0000);
>         break;
>
> Two things to note are that there are two extra 0's at the start of the
> colour specifying the alpha value and that the colours are reversed.
Instead
> of specifying r,g,b they are blue, green, red (weird) in hex.
>
> -----Original Message-----
> From: Kevin Wood <ke...@me...>
> To: dev...@li...
> <dev...@li...>
> Date: Sunday, November 04, 2001 12:05 PM
> Subject: Re: [Dev-C++] Drawing lines
>
>
> >Hello everyone,
> >
> >I have copied the following from the Windows API help files. Does it
help?
> >
> >-----------------------------------------
> >
> >The SetPixel function sets the pixel at the specified coordinates to the
> >specified color.
> >
> >COLORREF SetPixel(
> >
> >    HDC hdc, // handle of device context
> >    int X, // x-coordinate of pixel
> >    int Y, // y-coordinate of pixel
> >    COLORREF crColor  // pixel color
> >   );
> >
> >
> >Parameters
> >
> >hdc
> >
> >Identifies the device context.
> >
> >X
> >
> >Specifies the x-coordinate, in logical units, of the point to be set.
> >
> >Y
> >
> >Specifies the y-coordinate, in logical units, of the point to be set.
> >
> >crColor
> >
> >Specifies the color to be used to paint the point.
> >
> >Return Values
> >
> >If the function succeeds, the return value is the RGB value that the
> >function sets the pixel to. This value may differ from the color
specified
> >by crColor; that happens when an exact match for the specified color
cannot
> >be found.
> >If the function fails, the return value is -1. To get extended error
> >information, call GetLastError.
> >
> >Remarks
> >
> >The function fails if the pixel coordinates lie outside of the current
> >clipping region.
> >Not all devices support the SetPixel function. For more information, see
> >GetDeviceCaps.
> >
>
>---------------------------------------------------------------------------
> -
> >-------------
> >
> >Regards,
> >        Kevin.
> >
> >
> >
> >----- Original Message -----
> >From: Christiaan Scholtz <ck...@ia...>
> >To: <dev...@li...>
> >Sent: Saturday, November 03, 2001 7:06 PM
> >Subject: [Dev-C++] Drawing lines
> >
> >
> >
> >But how do the graphics libraries put a pixel on the screen?  There has
to
> >be a way! I dont want to use a library
> >
> >
> >
> >_______________________________________________
> >Dev-cpp-users mailing list
> >Dev...@li...
> >https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Re: [Dev-C++] Random numbers with MS Visual C++

[Kevin W. <ke...@me...>]

Hello everyone,

I think the Borland random function is not standard.
Try this instead:

#include <stdlib.h>

int rand(void);
// Random number generator.
// rand returns successive pseudorandom numbers in the
// range from 0 to RAND_MAX. 
// The symbolic constant RAND_MAX is defined in stdlib.h.
// rand returns the generated pseudorandom number.

void srand(unsigned seed);
// Initializes the random number generator.

By the way, I don't think much of that font!

Regards,
        Kevin.

Re: [Dev-C++] opengl in dev-c++?

[Jason <tux...@au...>]

Oh yea, I had the first one but I forgot the second two, now it compiles but
when I try to run it it says it cannot find the dynamic link library
GLAUX.dll. I don't know where to get this dll. Or else I am doing something
wrong.

bana-sea-

----- Original Message -----
From: "Christiaan Scholtz" <ck...@ia...>
To: "Jason" <tux...@au...>
Sent: Sunday, November 04, 2001 12:07 PM
Subject: Re: [Dev-C++] opengl in dev-c++?


> It compiles fine over here, did you remember to
> add -lopengl32 -lglu32 -lglaux to the project options?
>
> -----Original Message-----
> From: Jason <tux...@au...>
> To: dev...@li...
> <dev...@li...>
> Date: Sunday, November 04, 2001 7:19 PM
> Subject: Re: [Dev-C++] opengl in dev-c++?
>
>
> >Hmm... yes I already did that... This is what I have so far.
> >
> >bana-sea-
> >
> >----- Original Message -----
> >From: Christiaan Scholtz
> >To: dev...@li...
> >Sent: Sunday, November 04, 2001 3:22 AM
> >Subject: [Dev-C++] opengl in dev-c++?
> >
> >
> >>I had the same problem. What you need to do is add #include <stdlib.h>
at
> >the top and it should work fine
> >
>

Re: [Dev-C++] opengl in dev-c++?

[Jason <tux...@au...>]

Hmm... yes I already did that... This is what I have so far.

bana-sea-

----- Original Message -----
From: Christiaan Scholtz
To: dev...@li...
Sent: Sunday, November 04, 2001 3:22 AM
Subject: [Dev-C++] opengl in dev-c++?


>I had the same problem. What you need to do is add #include <stdlib.h> at
the top and it should work fine

[Dev-C++] Random numbers with MS Visual C++

[Exuss D. <dra...@ce...>]

 Hi all,

 I am using MS Visual C++ 6.0 as C++ compiler. When I use Borland 
command line compiler, I use stdlib.h and I have random nubers. But 
file stdlib.h from MS VC does't have neither random() nor randomize() 
functions. 
 How to get random numbers when compiling console applications with 
MS VC ?

 Exuss


 Example:

#include <iostream.h>
#include <stdlib.h>

void main()
{
    randomize();
    int number=random(100);
    cout << "My random number:" << number << endl;
}

Re: [Dev-C++] Drawing lines

[Christiaan S. <ck...@ia...>]

Yes that works!
Heres my code to do it:
case WM_PAINT:
        SetPixel(GetDC(hwnd),100,100,0x00FF0000);
        SetPixel(GetDC(hwnd),101,100,0x00FF0000);
        SetPixel(GetDC(hwnd),102,100,0x00FF0000);
        SetPixel(GetDC(hwnd),103,100,0x00FF0000);
        SetPixel(GetDC(hwnd),104,100,0x00FF0000);
        break;

Two things to note are that there are two extra 0's at the start of the
colour specifying the alpha value and that the colours are reversed. Instead
of specifying r,g,b they are blue, green, red (weird) in hex.

-----Original Message-----
From: Kevin Wood <ke...@me...>
To: dev...@li...
<dev...@li...>
Date: Sunday, November 04, 2001 12:05 PM
Subject: Re: [Dev-C++] Drawing lines


>Hello everyone,
>
>I have copied the following from the Windows API help files. Does it help?
>
>-----------------------------------------
>
>The SetPixel function sets the pixel at the specified coordinates to the
>specified color.
>
>COLORREF SetPixel(
>
>    HDC hdc, // handle of device context
>    int X, // x-coordinate of pixel
>    int Y, // y-coordinate of pixel
>    COLORREF crColor  // pixel color
>   );
>
>
>Parameters
>
>hdc
>
>Identifies the device context.
>
>X
>
>Specifies the x-coordinate, in logical units, of the point to be set.
>
>Y
>
>Specifies the y-coordinate, in logical units, of the point to be set.
>
>crColor
>
>Specifies the color to be used to paint the point.
>
>Return Values
>
>If the function succeeds, the return value is the RGB value that the
>function sets the pixel to. This value may differ from the color specified
>by crColor; that happens when an exact match for the specified color cannot
>be found.
>If the function fails, the return value is -1. To get extended error
>information, call GetLastError.
>
>Remarks
>
>The function fails if the pixel coordinates lie outside of the current
>clipping region.
>Not all devices support the SetPixel function. For more information, see
>GetDeviceCaps.
>
>---------------------------------------------------------------------------
-
>-------------
>
>Regards,
>        Kevin.
>
>
>
>----- Original Message -----
>From: Christiaan Scholtz <ck...@ia...>
>To: <dev...@li...>
>Sent: Saturday, November 03, 2001 7:06 PM
>Subject: [Dev-C++] Drawing lines
>
>
>
>But how do the graphics libraries put a pixel on the screen?  There has to
>be a way! I dont want to use a library
>
>
>
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

[Dev-C++] opengl in dev-c++?

[Christiaan S. <ck...@ia...>]

I had the same problem. What you need to do is add #include <stdlib.h> =
at the top and it should work fine

Re: [Dev-C++] Drawing lines

[Kevin W. <ke...@me...>]

Hello everyone,

I have copied the following from the Windows API help files. Does it help?

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

The SetPixel function sets the pixel at the specified coordinates to the
specified color.

COLORREF SetPixel(

    HDC hdc, // handle of device context
    int X, // x-coordinate of pixel
    int Y, // y-coordinate of pixel
    COLORREF crColor  // pixel color
   );


Parameters

hdc

Identifies the device context.

X

Specifies the x-coordinate, in logical units, of the point to be set.

Y

Specifies the y-coordinate, in logical units, of the point to be set.

crColor

Specifies the color to be used to paint the point.

Return Values

If the function succeeds, the return value is the RGB value that the
function sets the pixel to. This value may differ from the color specified
by crColor; that happens when an exact match for the specified color cannot
be found.
If the function fails, the return value is -1. To get extended error
information, call GetLastError.

Remarks

The function fails if the pixel coordinates lie outside of the current
clipping region.
Not all devices support the SetPixel function. For more information, see
GetDeviceCaps.

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

Regards,
        Kevin.



----- Original Message -----
From: Christiaan Scholtz <ck...@ia...>
To: <dev...@li...>
Sent: Saturday, November 03, 2001 7:06 PM
Subject: [Dev-C++] Drawing lines



But how do the graphics libraries put a pixel on the screen?  There has to
be a way! I dont want to use a library

[Dev-C++] Using Dev-C++

[Jose S. <dyo...@ho...>]

Good day to all!!! :-)

How does the Dev-C++ IDE produce assembly language output
after compilation, and can it be viewed?

I would really really appreciate any response... :-)
Thank you so much in advance.
Kindest regards...

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

Re: [Dev-C++] opengl in dev-c++?

[Jason <tux...@au...>]

No I figured it out, thanks anyway though. I do wonder about the free()
function. Because it gives me two linker errors on

undefined reference to 'auxDIBImageA@4'
undefined reference to 'gluPerspective@32'

I don't know what could be causing this...

thx

bana-sea-

> Do you still need  help seeting up opengl in dev c++?

Re: [Dev-C++] Drawing Lines...

[Jason H. <jas...@bt...>]

Hello! Me again. Probably sick of me replying all the time and not being
helpful enough.

I'm not sure of your level of maths knowledge, but I'll put it simply and
elaborate later (if you want). There are algorithms for drawing lines that
are optimised for speed and can do things like anti-aliasing, but to do a
simple line with simple maths then all you need to know is how to calculate
the gradient of the line.

If I had a pen and paper and could explain it that way it would be easier,
but I'll try in writing.

By calculating the gradient you can then tell how much y increases (or
decreases) for each one of x (or x of y) i.e.
Assuming x1 (start) is smaller than x2 (end), i.e. line going left to right
on a screen. If not the case just swap coords around.

double gradient, dx, dy, x, y;

dx = x1 - x2; // change in x
dy = y1 - y2; // change in y

gradient = dy/dx;

for(x = x1, y = y1; x <= x2; ++x, y += gradient)
    putpixel(static_cast<int>(x), static_cast<int>(y), colour);
/* proper rounding would be better, but simple rounding down of decimals in
double to int conversion should be OK */

This is a guide of what you might do. I've not tested it, but AFAICT the
math is OK. With a little more work you should be able to go in any
direction. Other algorithms avoid the use of floating point representation
cos it's slower than integer maths.

I'll go into putpixel later if you want, but first can I ask what are you
trying to do (apart from draw a line)? If you are working in a window then
there are a broad set of drawing functions available for use, i.e. LineTo(),
Polygon(), Rectangle() etc... and they can be used on a DirectX app if need
be? I hope I'm not confusing the issue?

Jason.

----- Original Message -----
From: "<Dx 8a>" <vin...@ed...>
To: "Dev-C++ mailing list" <dev...@li...>
Sent: Sunday, November 04, 2001 1:31 AM
Subject: [Dev-C++] Drawing Lines...


> Ok guys, I'll put it all together, and hopefully I can get the point...
>
> Using a library might be a good choice... I'tll save me a lot of time and
effort... But I surely don't know where I can get from so I guess I'll have
to do things manually.
>
> And yes, I think, DirectX doesn't supply a PutPixel or something to put
points on the screen... That's why Ill have to make my own functions...
>
> Also, there must be someway of doing this thing mathematically... I found
that on a tutorial... that drawing pixels in the screen can be done
mathematically... although, the tutorial didn't included a formula in
drawing a straight line on the screen... Does anyone know of such a formula?
>
> Drawing the pixel on the screen would require me to access the memory
buffer or something... Ill have to make a function to simplify the task and
do a PutPixel...
>
> am I missing something? I hope I got it right, ive actually started coding
a few days earlier... and caused my system to crash... the reason I don't
really know... but it sure wasn't the programming I did... which also
prevented me to check the mailing list...
>
> Well guys, thanks in many ways... although I'll leave the still unanswered
question...
>
>
>
>
> How do I draw Straight lines on the screen? (using DirectX)
>
>
> Specifically, now Im asking of a formula that would make it sure that what
I'm drawing is a straight line... the previous things in the mailing list
have actually helped me to know what Ill actually have to do In doing the
drawing... Well... i hope someone could enlighten me somehow
>
> Thanks...
>
> Dx Fx
>
> __________________________________
> www.edsamail.com
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users

[Dev-C++] Drawing Lines...

[<Dx 8a> <vin...@ed...>]

Ok guys, I'll put it all together, and hopefully I can get the point...

Using a library might be a good choice... I'tll save me a lot of time and effort... But I surely don't know where I can get from so I guess I'll have to do things manually.

And yes, I think, DirectX doesn't supply a PutPixel or something to put points on the screen... That's why Ill have to make my own functions...

Also, there must be someway of doing this thing mathematically... I found that on a tutorial... that drawing pixels in the screen can be done mathematically... although, the tutorial didn't included a formula in drawing a straight line on the screen... Does anyone know of such a formula?

Drawing the pixel on the screen would require me to access the memory buffer or something... Ill have to make a function to simplify the task and do a PutPixel...

am I missing something? I hope I got it right, ive actually started coding a few days earlier... and caused my system to crash... the reason I don't really know... but it sure wasn't the programming I did... which also prevented me to check the mailing list...

Well guys, thanks in many ways... although I'll leave the still unanswered question...




How do I draw Straight lines on the screen? (using DirectX)


Specifically, now Im asking of a formula that would make it sure that what I'm drawing is a straight line... the previous things in the mailing list have actually helped me to know what Ill actually have to do In doing the drawing... Well... i hope someone could enlighten me somehow

Thanks...

Dx Fx

__________________________________
www.edsamail.com

[Dev-C++] Drawing lines

[Christiaan S. <ck...@ia...>]

But how do the graphics libraries put a pixel on the screen?  There has =
to be a way! I dont want to use a library

Re: [Dev-C++] using *.lib 's

[Jason H. <jas...@bt...>]

There is a tool for converting from lib to a and vice versa, but I can't =
remember where I saw it (sorry). You might want to chech out the MinGW =
website or even the gcc website. I would provide you with the links but =
I've not got much time. When I get back later I'll look around for you.

Jason.
  ----- Original Message -----=20
  From: St0fF 64=20
  To: dev-cpp-liste=20
  Sent: Friday, November 02, 2001 2:32 PM
  Subject: [Dev-C++] using *.lib 's


  Hi all!
  As I sat up my system to win2k, my compiler wasn't able to compile oGL =
anymore.  I had to install the *.lib 's again.  Now here's the problem:  =
GCC/MINGW32 doesn't link *.lib (which visual c++/borland library =
format.).  How can I convert the *.libs to *.a?=20
  Thanks, St0fF.

[Dev-C++] using *.lib 's

[St0fF 6. <st...@gm...>]

Hi all!
As I sat up my system to win2k, my compiler wasn't able to compile oGL =
anymore.  I had to install the *.lib 's again.  Now here's the problem:  =
GCC/MINGW32 doesn't link *.lib (which visual c++/borland library =
format.).  How can I convert the *.libs to *.a?=20
Thanks, St0fF.