Can not find where to define an identifier..
-
No one here can guess what this code is doing, or what it is supposed to do. And trying to learn C++ by modifying someone else's code is not a great idea.
OK thanks but i have no time to learn from scratch I have an existing code doing more or less what i expect on the displays and am trying to make it look how i want.
-
OK thanks but i have no time to learn from scratch I have an existing code doing more or less what i expect on the displays and am trying to make it look how i want.
Carbonkevlar13 wrote:
i have no time to learn from scratch
Then you are going to need a lot of luck, and will probably get very frustrated. Looking at the few lines of code you did show suggests that it is a Windows GUI application, so that is another subject you will need to learn.
-
Thanks the functions are defined in the script of the screen I am wondering if they should be declared somewhere else ? void Screen3Enter(void) { } void Screen3Create(void) { // Setup default keys ScreensSetupDefaultKeys();
In
C++there is no script. There are, instead, header files (*.h) and source files (usually*.cppor*.cc). You should put the function declarations, e.g.void Screen3Enter();
in header files, while the function definitions, e.g.
void Screen3Enter()
{
// some useful code here
}should be written in source files.
"In testa che avete, Signor di Ceprano?" -- Rigoletto
-
In
C++there is no script. There are, instead, header files (*.h) and source files (usually*.cppor*.cc). You should put the function declarations, e.g.void Screen3Enter();
in header files, while the function definitions, e.g.
void Screen3Enter()
{
// some useful code here
}should be written in source files.
"In testa che avete, Signor di Ceprano?" -- Rigoletto
Thanks i already have these declarations inside screens3.cpp void Screen3Enter(void) void Screen3Create(void) void Screen3Update(void) void Screen3Exit(void) when i am inside screens3.cpp there is a "No issues found" message at the bottom of the screen but when i launch the simulation i have these 4 error messages C2065 'Screen3Enter' undeclared identifier from the screens.cpp source referring to the following line MMIRegisterScreen(SCREENID_3, Screen3Enter, Screen3Create, Screen3Update, Screen3Exit); Thanks for trying to help me
-
Thanks i already have these declarations inside screens3.cpp void Screen3Enter(void) void Screen3Create(void) void Screen3Update(void) void Screen3Exit(void) when i am inside screens3.cpp there is a "No issues found" message at the bottom of the screen but when i launch the simulation i have these 4 error messages C2065 'Screen3Enter' undeclared identifier from the screens.cpp source referring to the following line MMIRegisterScreen(SCREENID_3, Screen3Enter, Screen3Create, Screen3Update, Screen3Exit); Thanks for trying to help me
Put those declarations inside the screens3.h header file. For instance:
// screens3.h
#ifndef _SCREENS3_
#define _SCREENS3_
void Screen3Enter(void);
void Screen3Create(void);
void Screen3Update(void);
void Screen3Exit(void);
#endifthen put
#include "screens3.h"
in every source file that needs them (e.g. screens.cpp)
"In testa che avete, Signor di Ceprano?" -- Rigoletto
-
Put those declarations inside the screens3.h header file. For instance:
// screens3.h
#ifndef _SCREENS3_
#define _SCREENS3_
void Screen3Enter(void);
void Screen3Create(void);
void Screen3Update(void);
void Screen3Exit(void);
#endifthen put
#include "screens3.h"
in every source file that needs them (e.g. screens.cpp)
"In testa che avete, Signor di Ceprano?" -- Rigoletto
I added #include "screens3.h" in different source files although it was not for the other screens When i launched the simulator there was an error message saying "cannot open source file screen3.h" I tried to retype MMIRegisterScreen instead of copying it and when i started to type the first function (screen3Enter) it proposed different functions to me but none for the screen 3 although they qre declared inside the screen3.cpp I deleted the screen3Enter function and retyped it hoping to see it appear in the list of proposed functions for the MMURefusterScreen but still it was not in the list
-
Thanks the functions are defined in the script of the screen I am wondering if they should be declared somewhere else ? void Screen3Enter(void) { } void Screen3Create(void) { // Setup default keys ScreensSetupDefaultKeys();
-
I added #include "screens3.h" in different source files although it was not for the other screens When i launched the simulator there was an error message saying "cannot open source file screen3.h" I tried to retype MMIRegisterScreen instead of copying it and when i started to type the first function (screen3Enter) it proposed different functions to me but none for the screen 3 although they qre declared inside the screen3.cpp I deleted the screen3Enter function and retyped it hoping to see it appear in the list of proposed functions for the MMURefusterScreen but still it was not in the list
-
Quote:
I added #include "screens3.h" in different source
Quote:
there was an error message saying "cannot open source file screen3.h"
can you spot the difference?
"In testa che avete, Signor di Ceprano?" -- Rigoletto
yes i removed the s from screens3 but no change finally what i did is modify a fourth screen already programmed with a gauge to benefit from the declarations and it works.. I still do not understand why it did not work with my screen. Thanks for your help !
-
yes i removed the s from screens3 but no change finally what i did is modify a fourth screen already programmed with a gauge to benefit from the declarations and it works.. I still do not understand why it did not work with my screen. Thanks for your help !
-
yes i removed the s from screens3 but no change finally what i did is modify a fourth screen already programmed with a gauge to benefit from the declarations and it works.. I still do not understand why it did not work with my screen. Thanks for your help !