Re: call fuction from another class - C / C++ / MFC Discussion Boards

Please teach me in detail,thank you very much!

Hi all

I have an application which calls another thread with own window procedure.
Inside that another window I put edit control.
My problem is that I can not type anything inside that Edit Control.
It looks, that it does not have keyboard focus.So, I tryed to work with SetFocus(), but it did not help.
Please answer my question.
Tahnks.

Nena

What kind of thread does the main thread spawn? In other words, the child thread should be a UI thread if you want to update the edit control.

Kuphryn

hello
i declared function in one class that i creat ,public, but when i want to use it in an other class it say that's not declared.

Did you include the declaing header file into the callers?

Do Lipton employees get coffee breaks?

yes i do

How are you using it in the other class?

Class A
{
public:
   void AFunc();
} // end Class A

Class B
{
    void SomeBFunc();
} // end Class B

void B::SomeBFunc()
{
   A aInst;
   aInst.AFunc();   // Correct
   AFunc();         // Wrong
} // end B::SomeBFunc()

Unless B is inherited from A.

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

// creatfoufou.cpp: implementation of the creatfoufou class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "OpenGl.h"
#include "creatfoufou.h"
#include "foufou.h"

#include

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

creatfoufou::creatfoufou()
{

}

creatfoufou::~creatfoufou()
{

}

void creatfoufou::creatfou(int amount)
{
foufou *newfoufouPtr;
int randomX,randomY,randomZ;
int speed,steer;

for(int index=0;index {
newfoufouPtr = new foufou();
fou_caracter.push_back( newfoufouPtr );
//ici vien l'integration ou le dessin de foufou dans la scene
randomX = ( ( 1 + rand( ) % 900 ) - 450 );
randomY = ( ( 1 + rand( ) % 100 ) - 50 );
randomZ = ( ( 1 + rand( ) % 900 ) - 450 );

setposition(randomX,randomY,randomZ);
//speed =

//steer =

//lui attribue sa vitesse
//lui attribuer son emplacement
//lui attribuer sa direction

}
}

void creatfoufou::setposition(int newX, int newY, int newZ)
{
-->the mistak RePaint(randomX,randomY,randomZ);
}

and here when i declared
// foufou.cpp: implementation of the foufou class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "OpenGl.h"
#include "foufou.h"
#include

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

foufou::foufou()
{

}

foufou::~foufou()
{

}

//Propriétés réflectives de l'objet touché par la lumière
GLfloat Material_Ambiante[]={0.5,0.5, 0.5, 1 };
GLfloat Material_Difuse[]={0.5, 0.5, 0.5, 1};
GLfloat Material_Specular[]={0.5, 0.5, 0.5, 1};

//Propriété de la lumière

GLfloat Light_Ambiante[]={0.2, 0.2, 0.2, 0.1};
GLfloat Light_Difuse[]={0.5, 0.5, 0.5, 1.0 };
GLfloat Light_Specular[]={1.0, 1.0, 1.1, 1.0 };
GLfloat Light_Position[]={10, 12, 10, 1.0 };

GLfloat Light_Direction[]={0.0,-1.0, 0.0, 1.0};

void foufou::Initial()
{
//Définir les propriété de l'objet touché par la lumière ainsi que la lumière

glMaterialfv( GL_FRONT, GL_AMBIENT, Material_Ambiante);
glMaterialfv( GL_FRONT, GL_DIFFUSE, Material_Difuse);
glMaterialfv( GL_FRONT, GL_SPECULAR,Material_Specular);
glMaterialf( GL_FRONT, GL_SHININESS, 20);

glLightfv( GL_LIGHT0, GL_AMBIENT,Light_Ambiante );
glLightfv( GL_LIGHT0, GL_DIFFUSE, Light_Difuse );
glLightfv( GL_LIGHT0, GL_SPECULAR, Light_Specular);
glLightfv( GL_LIGHT0, GL_POSITION, Light_Position );

//Activation de l'éclairage
glEnable( GL_LIGHTING );

//Activation de la première lumière
glEnable( GL_LIGHT0 );

//Activation du test de profondeur
glEnable( GL_DEPTH_TEST );

};

void foufou::RePaint(int xpos,int ypos,int zpos)
{
//Vidage du contenu situé à l'écran
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//glClearColor(0.3, 0.3, 0.3, 1.0);

//On réénitialise la matrice modélisation-visualisation
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();

//On place la caméra dans la scène

gluPerspective (90, 1, 5, 50);
gluLookAt (2,2, -15, -4,0.0, 1, 0.0, 1.0, 0.0 );

//surface avec rotation de 45°
glPushMatrix();

//rotation de la surface
// glTranslated(0.0, 30.0, 15.0 );
// glRotated( 15, 0.0, 0.0, 0.0 );

////////
//Proprité de réfléction ambiante de la matière
glColorMaterial( GL_FRONT, GL_AMBIENT );
glColor4f(0.5, 0.5, 0.6, 1.0 );
//Proprité de réfléction diffuse de la matière}
glColorMaterial( GL_FRONT, GL_DIFFUSE );
glColor4f( 0.5, 0.2, 0.8, 1.0 );
//Proprité de réfléction speculaire de la matière}
glColorMaterial( GL_FRONT, GL_SPECULAR );
glColor4f( 0.9, 0.8, 1.0, 1.0 );
//Création de la surface 30 x 30}

//glutSolidCube(3);

glTranslated(-xpos, ypos, zpos );
glutSolidSphere(0.9,30,40);
glDisable( GL_LIGHTING );

glPopMatrix();

//glDisable(GL_TEXTURE_2D);

SwapBuffers(wglGetCurrentDC());

};

aguest wrote:
void creatfoufou::setposition(int newX, int newY, int newZ)
{
-->the mistak RePaint(randomX,randomY,randomZ);
}

aguest wrote:
void foufou::RePaint(int xpos,int ypos,int zpos)

This is exactly what I stated in my previous message. Even though you declared RePaint as a public function in foufou class you can't just use it in createfoufou. You need to call it this way:

class createfoufou
{
public:
  createfoufou()
private:
  foufou *newfoufouPtr;
};

createfoufou::createfoufou()
{
   newfoufouPtr = new foufou;
};

void creatfoufou::setposition(int newX, int newY, int newZ)
{
     newfoufouPtr->RePaint(randomX,randomY,randomZ);
}

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

when i must declare

<br />
void B::SomeBFunc(){   A aInst;   aInst.AFunc();   // Correct   AFunc();         // Wrong} // end B::SomeBFunc()

in which class or file(.h or .cpp)

In createfoufou.cpp

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

i make all what u ask me ,and this mistake don't stille but other mistakes appears:

<br />
OpenGlView.obj : error LNK2005: "int  PANIC_SPEED" (?PANIC_SPEED@@3HA) already defined in creatfoufou.obj<br />
OpenGlView.obj : error LNK2005: "int  MINIMUM_SPEED" (?MINIMUM_SPEED@@3HA) already defined in creatfoufou.obj<br />
OpenGlView.obj : error LNK2005: "int  STARTINGSPEED" (?STARTINGSPEED@@3HA) already defined in creatfoufou.obj<br />
OpenGlView.obj : error LNK2005: "class std::vector<class foufou *,class std::allocator<class foufou *> >  fou_caracter" (?fou_caracter@@3V?$vector@PAVfoufou@@V?$allocator@PAVfoufou@@@std@@@std@@A) already defined in creatfoufou.obj<br />
OpenGlView.obj : error LNK2005: "int  num_fou_caracter" (?num_fou_caracter@@3HA) already defined in creatfoufou.obj<br />
Debug/OpenGl.exe : fatal error LNK1169: one or more multiply defined symbols found<br />
Error executing link.exe.<br />
Creating browse info file...<br />
<br />
OpenGl.exe - 6 error(s), 2 warning(s)<br />

this

// creatfoufou.h: interface for the creatfoufou class.<br />
//<br />
//////////////////////////////////////////////////////////////////////<br />
 <br />
#if !defined(AFX_CREATFOUFOU_H__BE7E5BDB_1815_48E7_AAC4_B30A8F281BA4__INCLUDED_)<br />
#define AFX_CREATFOUFOU_H__BE7E5BDB_1815_48E7_AAC4_B30A8F281BA4__INCLUDED_<br />
<br />
<br />
<br />
#if _MSC_VER > 1000<br />
#pragma once<br />
#endif // _MSC_VER > 1000<br />
#include "gl/glut.h"<br />
#include "foufou.h"<br />
#include <vector> <br />
<br />
int STARTINGSPEED = 150;<br />
int MINIMUM_SPEED  =80;<br />
int PANIC_SPEED   =25;<br />
<br />
using namespace std;<br />
vector< foufou * > fou_caracter;<br />
int num_fou_caracter;<br />
<br />
class creatfoufou  <br />
{<br />
<br />
<br />
public:<br />
	GLfloat randomZ;<br />
	GLfloat randomY;<br />
	GLfloat randomX;<br />
	void setposition(int newX,int newY,int newZ);<br />
	void creatfou(int amount);<br />
	<br />
	creatfoufou();<br />
	virtual ~creatfoufou();<br />
private:<br />
	foufou *ptrfoufou;<br />
<br />
};<br />
<br />
#endif // !defined(AFX_CREATFOUFOU_H__BE7E5BDB_1815_48E7_AAC4_B30A8F281BA4__INCLUDED_)<br />

I am not sure but my best guess is that these variables:

int STARTINGSPEED = 150;
int MINIMUM_SPEED =80;
int PANIC_SPEED =25;
using namespace std;
vector< foufou * > fou_caracter;
int num_fou_caracter;

have been declared somewhere else. Maybe in creatfoufou.cpp or foufou.h.

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

Is there a way to print out a warning when someone goes to use a function? I want it to be printed whenever (and only when) the function is referenced.

-Jack

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

VC7 Specific

#pragma deprecated( function1 [, function2, ...] )

-OR-

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

Tim Smith

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

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.

Anything starting with two underscores is compiler specific.

Tim Smith

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

// 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 />

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.

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.

You have to declare it like this

namespace abc
{
class myclass;
}

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 | :~

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.

Much obliged pardner! Big Grin | :-D

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