Re: Quick question!

From:
"Robby" <logicom@sympatico.ca>
Newsgroups:
microsoft.public.vc.language
Date:
Sun, 28 May 2006 12:51:07 -0700
Message-ID:
<Aaneg.159$EF1.19759@news20.bellglobal.com>
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Hi David and Abdo....its just one of those days !

OKAY,

Right now this is the way I have it! Lets forget about the classes that =
derive from components for now.
Just the class definition is show!

Here is the code:

==========================
=============WndProc.h
class components
{
public:
components(){}
components(int Flag);
virtual ~components() {}
virtual void SYS_innitz_FLAG_AllTrueInCase();
virtual void SYS_set_SFCC(bool bCondTrue,int AmtOfComm);
virtual int SYS_get_FLAG_AllTrueInCase()const;
virtual bool SYS_Validate_FLAG_AllTrueInCase();
static int FLAG_AllTrueInCase;
protected:
};
==========================
======================

==========================
=============WndProc.cpp
#include "WndProc.h"

LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
                                                            PARAM =
wParam, LPARAM lParam)
{
static components cp(0);

....other code...

case WM_TIMER:
cp.SYS_set_SFCC(true,1);

.... other code...
}
==========================
======================

What I am trying to do is to take the calling of methods in the Timer =
handler ex:

cp.SYS_set_SFCC(true,1);

and put them in another cpp file called "SFC_1.cpp"

So here is the whole sample again:

==========================
=============WndProc.h
class components
{
public:
components(){}
components(int Flag);
virtual ~components() {}
virtual void SYS_innitz_FLAG_AllTrueInCase();
virtual void SYS_set_SFCC(bool bCondTrue,int AmtOfComm);
virtual int SYS_get_FLAG_AllTrueInCase()const;
virtual bool SYS_Validate_FLAG_AllTrueInCase();
static int FLAG_AllTrueInCase;
protected:
};
==========================
==============

==========================
===============WndProc.cpp
#include "WndProc.h"
#include "SFC_1.h"

LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
                                                            PARAM =
wParam, LPARAM lParam)
{
static components cp(0);

....other code...

case WM_TIMER:
SFC1(&cp);

.... other code...
}
==========================
==========================
==

==========================
=====================SFC_1.h
bool SFC1(components &cp);
==========================
==========================
==

==========================
===================SFC_1.cpp
#include "SFC_1.h"
#include "WndProc.h"

bool SFC1(compopnents *cp)
{

//so I can do stuff like this....
cp->SYS_set_SFCC(true,1);
}
==========================
==========================
====

The errors might not be exactly the same as my previous post due to some =
includes I have added, however here are the errors!

c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(16): =
error C2065: 'components' : undeclared identifier
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(16): =
error C2065: 'cp' : undeclared identifier
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(16): =
fatal error C1903: unable to recover from previous error(s); stopping =
compilation

Anyways, Please get back!
appreciated!

Regards Roberto

"Robby" <Robby@discussions.microsoft.com> wrote in message =
news:C8F5B8A4-D4D1-4A37-9D29-3588587F3428@microsoft.com...

Hello:
 
Can we pass a pointer to an object from one cpp file to another by =

using a

function call. Assuming the object was created and declared along with =

its

accessor methods in the first cpp file, but you need to manipulate the =

same

object in the second cpp file.
 
heres a quick example of the function call which calls a function
in the second cpp file:
 
==================cpp #1
#include "cpp2.h"
class components
{
public:
void SYS_innitz_FLAG_AllTrueInCase() {}
virtual void SYS_set_SFCC(bool bCondTrue,int AmtOfComm) {}
protected:
};
 
static components cp;
 
SFC1(&cp); //Calling a function which exists in cpp #2
=======================
 
==================cpp2.h - header =

for cpp2

void SFC1(components *cp); //Function declaration
======================
==================cpp #2
void SFC1(components *cp) //Function implementation
{}
======================
 
When I do this I get the obvious errors of:
 
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(19): =

error

C2065: 'components' : undeclared identifier
 
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(19): =

error

C2065: 'cp' : undeclared identifier
 
 
It seems that all cpp files *must* have their own class definitions, =

and

associated implementations... right? I do beleive that I did post this =

problem before at a much larger scale, however, there could be a =

wrinkle of

difference in this one. Basically, just double checking!
 
All welcome and appreciated for the feedback....
 
thanks!
 
--
Best regards
Robert


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<BODY>
<DIV><FONT face=Arial size=2>Hi David and Abdo....its just one of =
those
days&nbsp;!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>OKAY,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2><FONT face=Arial size=2>Right now =
this is the way I
have it! Lets forget about the classes that derive from =
components&nbsp;for
now.</FONT></DIV>
<DIV>
<DIV><FONT face=Arial size=2>Just the class definition is =
show!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV></FONT><FONT face=Arial size=2>Here is the =
code:</FONT></DIV></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial
size=2>=======================
================WndProc.h</FONT></DIV>
<DIV><FONT face=Arial size=2>class components</FONT></DIV>
<DIV><FONT face=Arial size=2>{</FONT></DIV>
<DIV><FONT face=Arial size=2>public:</FONT></DIV>
<DIV><FONT face=Arial size=2>components(){} </FONT></DIV>
<DIV><FONT face=Arial size=2>components(int Flag); </FONT></DIV>
<DIV><FONT face=Arial size=2>virtual ~components() {} </FONT></DIV>
<DIV><FONT face=Arial size=2>virtual void =
SYS_innitz_FLAG_AllTrueInCase();
</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual void SYS_set_SFCC(bool =
bCondTrue,int
AmtOfComm);</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual int
SYS_get_FLAG_AllTrueInCase()const;</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual bool
SYS_Validate_FLAG_AllTrueInCase();</FONT></DIV>
<DIV><FONT face=Arial size=2>static int FLAG_AllTrueInCase; =
</FONT></DIV>
<DIV><FONT face=Arial size=2>protected: </FONT></DIV>
<DIV><FONT face=Arial size=2>};</FONT></DIV>
<DIV><FONT face=Arial
size=2>=======================
==========================
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV>
<DIV><FONT face=Arial
size=2>=======================
================WndProc.cpp</FONT></DIV>
<DIV>
<P><FONT face=Arial size=2>#include "WndProc.h"</FONT></P></DIV>
<DIV><FONT face=Arial size=2>LRESULT CALLBACK WndProc(HWND hwnd, =
UINT
message,</FONT></DIV>
<DIV><FONT face=Arial
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
PARAM wParam, LPARAM lParam)</FONT></DIV>
<DIV><FONT face=Arial size=2>{</FONT></DIV>
<DIV><FONT face=Arial size=2>static components cp(0);</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>...other code...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>case WM_TIMER:</FONT></DIV>
<DIV><FONT face=Arial size=2>cp.SYS_set_SFCC(true,1);</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>... other code...</FONT></DIV>
<DIV><FONT face=Arial size=2>}</FONT></DIV>
<DIV><FONT face=Arial
size=2>=======================
==========================
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>What I am trying to do is to take the =
calling of
methods in the Timer handler ex:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV>
<DIV><FONT face=Arial size=2>cp.SYS_set_SFCC(true,1);</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>and put them in another cpp file called =

"SFC_1.cpp"</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>So here is the whole sample =
again:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV>
<DIV><FONT face=Arial
size=2>=======================
================WndProc.h</FONT></DIV>
<DIV><FONT face=Arial size=2>class components</FONT></DIV>
<DIV><FONT face=Arial size=2>{</FONT></DIV>
<DIV><FONT face=Arial size=2>public:</FONT></DIV>
<DIV><FONT face=Arial size=2>components(){} </FONT></DIV>
<DIV><FONT face=Arial size=2>components(int Flag); </FONT></DIV>
<DIV><FONT face=Arial size=2>virtual ~components() {} </FONT></DIV>
<DIV><FONT face=Arial size=2>virtual void =
SYS_innitz_FLAG_AllTrueInCase();
</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual void SYS_set_SFCC(bool =
bCondTrue,int
AmtOfComm);</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual int
SYS_get_FLAG_AllTrueInCase()const;</FONT></DIV>
<DIV><FONT face=Arial size=2>virtual bool
SYS_Validate_FLAG_AllTrueInCase();</FONT></DIV>
<DIV><FONT face=Arial size=2>static int FLAG_AllTrueInCase; =
</FONT></DIV>
<DIV><FONT face=Arial size=2>protected: </FONT></DIV>
<DIV><FONT face=Arial size=2>};</FONT></DIV>
<DIV><FONT face=Arial
size=2>=======================
=================</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV>
<DIV><FONT face=Arial
size=2>=======================
==================WndProc.cpp</FONT><=
/DIV>
<DIV><FONT face=Arial size=2>#include "WndProc.h"</FONT></DIV>
<DIV><FONT face=Arial size=2>#include "SFC_1.h"</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>LRESULT CALLBACK WndProc(HWND hwnd, =
UINT
message,</FONT></DIV>
<DIV><FONT face=Arial
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
PARAM wParam, LPARAM lParam)</FONT></DIV>
<DIV><FONT face=Arial size=2>{</FONT></DIV>
<DIV><FONT face=Arial size=2>static components cp(0);</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>...other code...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>case WM_TIMER:</FONT></DIV>
<DIV><FONT face=Arial size=2><FONT
size=2>SFC1(&amp;cp);</DIV></FONT></FONT><FONT face=Arial =
size=2></FONT>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>... other code...</FONT></DIV>
<DIV><FONT face=Arial size=2>}</FONT></DIV>
<DIV><FONT face=Arial
size=2>=======================
==========================
=====</FONT></DIV></DIV></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial
size=2>=======================
========================S=
FC_1.h</FONT></DIV>
<DIV><FONT face=Arial size=2>bool SFC1(components =
&amp;cp);</FONT></DIV>
<DIV><FONT face=Arial
size=2>=======================
==========================
=====</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial
size=2>=======================
======================SFC_1.c=
pp</FONT></DIV>
<DIV><FONT face=Arial size=2>#include "SFC_1.h"</FONT></DIV>
<DIV><FONT face=Arial size=2>#include "WndProc.h"</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>bool SFC1(compopnents *cp)</FONT></DIV>
<DIV><FONT face=Arial size=2>{</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>//so I can do stuff like this.... =
</FONT></DIV>
<DIV><FONT face=Arial =
size=2>cp-&gt;SYS_set_SFCC(true,1);&nbsp;&nbsp;
</FONT></DIV>
<DIV><FONT face=Arial size=2>}</FONT></DIV></DIV>
<DIV><FONT face=Arial
size=2>=======================
==========================
=======</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>The errors might not be exactly the =
same as my
previous post due to some includes I have added, however here are the
errors!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial
size=2>c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h=
(16):
error C2065: 'components' : undeclared
identifier<BR>c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SF=
C_1.h(16):
error C2065: 'cp' : undeclared
identifier<BR>c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SF=
C_1.h(16):
fatal error C1903: unable to recover from previous error(s); stopping
compilation<BR></FONT></DIV></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Anyways, Please get back!</FONT></DIV>
<DIV><FONT face=Arial size=2>appreciated!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Regards Roberto</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>"Robby" &lt;</FONT><A
href="mailto:Robby@discussions.microsoft.com"><FONT face=Arial
size=2>Robby@discussions.microsoft.com</FONT></A><FONT face=Arial =
size=2>&gt;
wrote in message </FONT><A
href="news:C8F5B8A4-D4D1-4A37-9D29-3588587F3428@microsoft.com"><FONT =
face=Arial
size=2>news:C8F5B8A4-D4D1-4A37-9D29-3588587F3428@microsoft.com</FONT></=
A><FONT
face=Arial size=2>...</FONT></DIV><FONT face=Arial size=2>&gt; =
Hello:<BR>&gt;
<BR>&gt; Can we pass a pointer to an object from one cpp file to another =
by
using a <BR>&gt; function call. Assuming the object was created and =
declared
along with its <BR>&gt; accessor methods in the first cpp file, but you =
need to
manipulate the same <BR>&gt; object in the second cpp file.<BR>&gt; =
<BR>&gt;
heres a quick example of the function call which calls a =
function<BR>&gt; in the
second cpp file:<BR>&gt; <BR>&gt; =
==================cpp #1<BR>&gt; =
#include
"cpp2.h"<BR>&gt; class components<BR>&gt; {<BR>&gt; public:<BR>&gt; void =

SYS_innitz_FLAG_AllTrueInCase() {}<BR>&gt; virtual void =
SYS_set_SFCC(bool
bCondTrue,int AmtOfComm) {}<BR>&gt; protected:<BR>&gt; };<BR>&gt; =
<BR>&gt;
static components cp;<BR>&gt; <BR>&gt; SFC1(&amp;cp);&nbsp;&nbsp; =
//Calling a
function which exists in cpp #2<BR>&gt; =
=======================<BR>=
&gt; <BR>&gt;
==================cpp2.h - header =
for cpp2<BR>&gt; void SFC1(components
*cp);&nbsp;&nbsp; //Function declaration<BR>&gt; =
======================<BR>&gt=
;
==================cpp #2<BR>&gt; =
void SFC1(components *cp)&nbsp;&nbsp;&nbsp;
//Function implementation<BR>&gt; {}<BR>&gt; =
======================<BR>&gt=
;
<BR>&gt; When I do this I get the obvious errors of:<BR>&gt; <BR>&gt;
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(19): =
error
<BR>&gt; C2065: 'components' : undeclared identifier<BR>&gt; <BR>&gt;
c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\SFC_1.h(19): =
error
<BR>&gt; C2065: 'cp' : undeclared identifier<BR>&gt; <BR>&gt; <BR>&gt; =
It seems
that all cpp files *must* have their own class definitions, and <BR>&gt; =

associated implementations... right? I do beleive that I did post this =
<BR>&gt;
problem before at a much larger scale, however, there could be a wrinkle =
of
<BR>&gt; difference in this one. Basically, just double =
checking!<BR>&gt;
<BR>&gt; All welcome and appreciated for the feedback....<BR>&gt; =
<BR>&gt;
thanks!<BR>&gt; <BR>&gt; -- <BR>&gt; Best regards<BR>&gt;
Robert<BR>&gt;</FONT></BODY></HTML>

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