C / C++ / MFC

Jack Handy9-May-03 9:46

Jack Handy

9-May-03 9:46

Tim Smith wrote:
__declspec(deprecated) void func1(int)
{
printf("In func2\n");
}

This seems to not work in g++ but thanks for putting me on the right track.

-Jack

There are 10 types of people in this world, those that understand binary and those who don't.

Tim Smith9-May-03 9:49

Tim Smith

9-May-03 9:49

Anything starting with two underscores is compiler specific.

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

aguest9-May-03 15:16

aguest

9-May-03 15:16

// creatfoufou.cpp: implementation of the creatfoufou class.<br />
//<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
#include "stdafx.h"<br />
#include "OpenGl.h"<br />
#include "creatfoufou.h"<br />
#include "foufou.h"<br />
<br />
#include <math.h><br />
<br />
#ifdef _DEBUG<br />
#undef THIS_FILE<br />
static char THIS_FILE[]=__FILE__;<br />
#define new DEBUG_NEW<br />
#endif<br />
<br />
//////////////////////////////////////////////////////////////////////<br />
// Construction/Destruction<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
creatfoufou::creatfoufou()<br />
{<br />
<br />
}<br />
<br />
creatfoufou::~creatfoufou()<br />
{<br />
<br />
}<br />
<br />
void creatfoufou::creatfou(int amount)<br />
{<br />
   foufou *newfoufouPtr;<br />
   int randomX,randomY,randomZ;<br />
   int speed,steer;<br />
<br />
   for(int index=0;index<amount;index++)<br />
   {<br />
	   newfoufouPtr = new foufou();<br />
       fou_caracter.push_back( newfoufouPtr );<br />
//ici vien l'integration ou le dessin de foufou dans la scene<br />
	   	randomX = ( ( 1 + rand( ) % 900 ) - 450 );<br />
		randomY = ( ( 1 + rand( ) % 100 ) - 50 );<br />
		randomZ = ( ( 1 + rand( ) % 900 ) - 450 );<br />
   <br />
		setposition(randomX,randomY,randomZ);<br />
	   //speed =<br />
<br />
	   //steer =<br />
<br />
	   //lui attribue sa vitesse<br />
	   //lui attribuer son emplacement<br />
       //lui attribuer sa direction<br />
<br />
   }<br />
}<br />
<br />
void creatfoufou::setposition(int newX, int newY, int newZ)<br />
{<br />
-->the mistak	RePaint(randomX,randomY,randomZ);<br />
}<br />

and here when i declared

// foufou.cpp: implementation of the foufou class.<br />
//<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
#include "stdafx.h"<br />
#include "OpenGl.h"<br />
#include "foufou.h"<br />
#include <gl/glut.h><br />
<br />
#ifdef _DEBUG<br />
#undef THIS_FILE<br />
static char THIS_FILE[]=__FILE__;<br />
#define new DEBUG_NEW<br />
#endif<br />
<br />
//////////////////////////////////////////////////////////////////////<br />
// Construction/Destruction<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
foufou::foufou()<br />
{<br />
<br />
}<br />
<br />
foufou::~foufou()<br />
{<br />
<br />
}<br />
<br />
<br />
<br />
//Propriétés réflectives de l'objet touché par la lumière<br />
GLfloat Material_Ambiante[]={0.5,0.5, 0.5, 1 };<br />
GLfloat Material_Difuse[]={0.5, 0.5, 0.5, 1};<br />
GLfloat Material_Specular[]={0.5, 0.5, 0.5, 1};<br />
<br />
<br />
<br />
//Propriété de la lumière<br />
<br />
GLfloat Light_Ambiante[]={0.2, 0.2, 0.2, 0.1};<br />
GLfloat Light_Difuse[]={0.5, 0.5, 0.5, 1.0 };<br />
GLfloat Light_Specular[]={1.0, 1.0, 1.1, 1.0 };<br />
GLfloat Light_Position[]={10, 12, 10, 1.0  };<br />
<br />
<br />
<br />
GLfloat Light_Direction[]={0.0,-1.0, 0.0, 1.0};<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
void foufou::Initial()<br />
{<br />
//Définir les propriété de l'objet touché par la lumière ainsi que la lumière<br />
<br />
	glMaterialfv( GL_FRONT, GL_AMBIENT, Material_Ambiante);<br />
    glMaterialfv( GL_FRONT, GL_DIFFUSE, Material_Difuse);<br />
    glMaterialfv( GL_FRONT, GL_SPECULAR,Material_Specular);<br />
    glMaterialf( GL_FRONT, GL_SHININESS, 20);<br />
<br />
    glLightfv( GL_LIGHT0, GL_AMBIENT,Light_Ambiante );<br />
    glLightfv( GL_LIGHT0, GL_DIFFUSE, Light_Difuse );<br />
    glLightfv( GL_LIGHT0, GL_SPECULAR, Light_Specular);<br />
    glLightfv( GL_LIGHT0, GL_POSITION, Light_Position );<br />
<br />
<br />
<br />
<br />
//Activation de l'éclairage<br />
	glEnable( GL_LIGHTING );<br />
<br />
<br />
//Activation de la première lumière<br />
	glEnable( GL_LIGHT0 );<br />
<br />
<br />
<br />
//Activation du test de profondeur<br />
	glEnable( GL_DEPTH_TEST );<br />
<br />
};<br />
<br />
void foufou::RePaint(int xpos,int ypos,int zpos)<br />
{<br />
//Vidage du contenu situé à l'écran<br />
	glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);<br />
	//glClearColor(0.3, 0.3, 0.3, 1.0);<br />
<br />
		<br />
//On réénitialise la matrice modélisation-visualisation<br />
	glMatrixMode (GL_PROJECTION);<br />
	glLoadIdentity ();<br />
<br />
<br />
//On place la caméra dans la scène<br />
<br />
gluPerspective (90, 1, 5, 50);<br />
gluLookAt (2,2, -15,  -4,0.0, 1,   0.0, 1.0, 0.0 );<br />
<br />
<br />
//surface avec rotation de 45°<br />
	glPushMatrix();<br />
<br />
<br />
	//rotation de la surface<br />
//	glTranslated(0.0, 30.0, 15.0 );<br />
  // glRotated( 15, 0.0, 0.0, 0.0 );<br />
	<br />
	////////<br />
	//Proprité de réfléction ambiante de la matière<br />
         glColorMaterial( GL_FRONT, GL_AMBIENT );<br />
         glColor4f(0.5, 0.5, 0.6, 1.0 );<br />
         //Proprité de réfléction diffuse de la matière}<br />
         glColorMaterial( GL_FRONT, GL_DIFFUSE );<br />
         glColor4f( 0.5, 0.2, 0.8, 1.0 );<br />
         //Proprité de réfléction speculaire de la matière}<br />
         glColorMaterial( GL_FRONT, GL_SPECULAR );<br />
         glColor4f( 0.9, 0.8, 1.0, 1.0 );<br />
         //Création de la surface 30 x 30}<br />
	<br />
		  <br />
         	//glutSolidCube(3);<br />
	<br />
			glTranslated(-xpos, ypos, zpos );<br />
      glutSolidSphere(0.9,30,40);<br />
	  	glDisable( GL_LIGHTING );<br />
<br />
    glPopMatrix();<br />
<br />
<br />
<br />
 <br />
//glDisable(GL_TEXTURE_2D);<br />
<br />
	SwapBuffers(wglGetCurrentDC());<br />
	<br />
};<br />

namespaces and forward declarations

Jack Handy9-May-03 22:07

Jack Handy

9-May-03 22:07

Did this have anything to do with my thread? If so I can't see how.

-Jack

There are 10 types of people in this world, those that understand binary and those who don't.

Member 9076299-May-03 8:58

Member 907629

9-May-03 8:58

Is there anyway to have a class defined within a namespace, and still use a forward declaration? Take the following example:

class myclass;

static void function(myclass *p);

namespace abc
{
class myclass
{
public:
int i;
};
};

using abc::myclass;

Compiling this with VC++ 6.0, I get error "C2874: using-declaration causes a multiple declaration of 'myclass'". Is there anyway around this? Does using namespaces mean you can no longer use forward declarations?

Thanks for your help.

Re: namespaces and forward declarations

Orhun Birsoy9-May-03 9:46

Orhun Birsoy

9-May-03 9:46

You have to declare it like this

namespace abc
{
class myclass;
}

Is it possible to import a set of menus?

adonisv9-May-03 8:54

adonisv

9-May-03 8:54

I have this dialog based project with a huge set of menus that I need to duplicate in my SDI. Can I just import them? If so how????? Unsure | :~

Re: Is it possible to import a set of menus?

basementman9-May-03 9:01

basementman

9-May-03 9:01

with the SDI project open, open the dialog project's .RC file. Copy the menu ID's and paste them into your SDI project's resource window. Simple copy and paste.

Cool, you can drag and drop even!!!

adonisv9-May-03 9:20

adonisv

9-May-03 9:20

Much obliged pardner! Big Grin | :-D

Read form serial port

K. Shaffer9-May-03 8:46

K. Shaffer

9-May-03 8:46

I have an application that is sending data through a serial port. That is working fine, but I am now to the point where I need to read from the serial port. I same across a CSerial Class developed by P J Naughter and it works quite well. I have played around with the Read() function and it works as long as you call it when you know something has already hit the port.

The application I am using this in is just a very simple dialog application. How do I setup an event handler that can interupt my program when a byte has hit the serial port? I have looked at some various resources without success. Does anyone have an idea that could help?

Thanks

Kevin Shaffer
Student of Computer Science
University of Kansas
kshaff03@msn.com

valikac9-May-03 9:34

valikac

9-May-03 9:34

One solution is to implement a non-blocking I/O model to communicate with the port. Microsoft published one solution using OVERLAPPED I/O.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnfiles/html/msdn_serial.asp

Kuphryn

K. Shaffer9-May-03 10:18

K. Shaffer

9-May-03 10:18

I've already spent alot of time in this article, but it doesnt help me (or at least I don't understand it well enough to help me). My application is running on a pc, and it needs to recieve instructions from a Palm, fetch data from the pc, and send it back to the Palm.

In order to do this, my application needs to be sitting here, and realize, oh! something has just hit the serial port. The program reads the data and processes it, then waits for the next com port "Event". I would prefer not to create my own loop and continue to poll the serial port, because then my application cannot handle other events that might occur.

That artice mentions an event called EV_RXCHAR is issued when a byte hits the serial port. I went through the message handling tutorials and tried to set up an event handler using ON_MESSAGE with no success. Im still trying all sorts of things, any more input would be appreciated.

thanks! Big Grin | :-D

Kevin Shaffer
Student of Computer Science
University of Kansas
kshaff03@msn.com

Toni789-May-03 14:36

Toni78

9-May-03 14:36

I have worked on a similar project 3 years ago and one of my team members handled the incoming data so I really don't remember much about the topic. If I remember correctly you have to have a thread which checks the serial port for a "Receive Character Event" and a while statement calling WaitCommEvent. I don't remember much but I hope that helps you.

// Afterall I realized that even my comment lines have bugs

daima_8879-May-03 14:57

daima_887

9-May-03 14:57

Do as the sample \Microsoft Visual Studio\MSDN98\SAMPLES\VC98\SDK\WINBASE\IO\SERIAL do,all things are OKAY

QQ

Re: Dialog screen freezes

Jan759-May-03 19:24

Jan75

9-May-03 19:24

Hello!

I have exactly the same Problem!
I just created a small function that results the current fill-status of the serial buffer. I used the implemented GetModemStatus function of CSerial from P.J.Naughter.

e.g.:

if (SomethingInIt()==TRUE)
buffer = Port.Read(..);

So this is nonblocking.

I hope I help you out!

Greetings from germany, Jan

Dialog screen freezes

yashraj9-May-03 8:22

yashraj

9-May-03 8:22

I have a program that uses a Progress bar , but when i try to minimise the dialog window during execution or activate some other program ,
and then return back to the dialog seems to get freezed
, progress bar status does not increment ,

HOWEVER the program run correctly in the background and after its execution completes the dialog freeze end and it is displayed currectly .

Any suggestions ?? Confused | :confused:

David Crow9-May-03 8:49

David Crow

9-May-03 8:49

It sounds like the classic "preemption" problem. Your application is blocking while doing its processing, thus not allowing the dialog's message pump to process messages. Read Joe Newcomer's article on thread management[^].

Re: Dialog screen freezes

Mahesh Varma9-May-03 18:11

Mahesh Varma

9-May-03 18:11

hi yashraj,

Execute the background process in a seperate thread(Worker thread will do). Increment the progress bar from the thread.

mahesh

Calling a pure "C" function from a class: How?

Cesario Simoes, jr9-May-03 8:14

9-May-03 8:14

Another problem when mixing pure "C" code and C++...
I'm adapting a DLL to use some pure "C" functions.
I have some modules in pure "C" puro and othersin C++.
In my module "ExportedFunctions.cpp" I have declared DLL exported functions... In this module the call to functions of class "login" are made:
login.createWindow(hwnd);
login.makeConexion(CString(operador), CString(senha), &lservidor );
In the file "ExportedFunctions.cpp" I have declared the class:
CLogin login;
In the module "login" I have declared as "public:" this functions:
public:
void createWindow(CWnd *pParent);
void makeConexion(CString operador, CString senha, CStringArray servidores);
These is working...;)

But now I have another modul (contcp.c), in pure "C"... And I have tried many ways to call fnEntrada from inside "ExportedFunctions.cpp" to a Function of "C" module without success! I #include "contcp.h" in "ExportedFunctions.cpp" and/or in "ExportedFunctions.h", but always occurs link error:

ExportedFunctions.obj : error LNK2001: unresolved external symbol "int __cdecl fnEntrada(void)" (?fnEntrada@@YAHXZ)
../dlls/Axsceovs2.dll : fatal error LNK1120: 1 unresolved externals
Error executing link.exe. Cry | :((

Somebody may help me??
Cesario
http://cesariosimoes.hpg.ig.com.br

Cesario Simoes, jr
Working with computers since 1970 (Burroughs/GTE). Programming in assembly DSP (TMS320c2x and TMS320c5x), C and C++. Using C++ and MFC, developping GUI to telecommunication equipment (PABX, ACD, RAS, etc.)

David Crow9-May-03 8:24

David Crow

9-May-03 8:24

Anywhere you have #include "contcp.h", you need to surround that with the extern keyword as in:

extern "C"
{
#include "contcp.h"
}

Cesario Simoes, jr9-May-03 8:37

9-May-03 8:37

Thank you, David! Ok very simple and I did it but, doesn't result... Cry | :((

Remains ocurring the link error:
ExportedFunctions.obj : error LNK2001: unresolved external symbol _fnEntrada
../dlls/Axsceovs2.dll : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
Another idea?

Cesario Simoes, jr
Working with computers since 1970 (Burroughs/GTE). Programming in assembly DSP (TMS320c2x and TMS320c5x), C and C++. Using C++ and MFC, developping GUI to telecommunication equipment (PABX, ACD, RAS, etc.)

David Crow9-May-03 8:53

David Crow

9-May-03 8:53

See if any of these[^] help.

Cesario Simoes, jr9-May-03 9:12

9-May-03 9:12

The problem occurs just this functions. If I declare a variable, this is recognized in the other module... Perhaps is something related with the function declaration? I'm declaring like this:
int fnEntrada();

Cesario

Cesario Simoes, jr
Working with computers since 1970 (Burroughs/GTE). Programming in assembly DSP (TMS320c2x and TMS320c5x), C and C++. Using C++ and MFC, developping GUI to telecommunication equipment (PABX, ACD, RAS, etc.)

Cesario Simoes, jr9-May-03 9:34