Re: [Dev-C++] Re: Undefined reference error

[Per W. <pw...@ia...>]

Since your include file - Control.h - doesn't contain any implementation
of OnInitPopup, you have to locate a source (*.cpp) file that contains the
implementation, or an object file or library that contains the method.
Add this source/object/lib to your project.

/Per W

On Tue, 29 Oct 2002, Napoleon Ahiable wrote:

> Hi,
> 
> I have this "Undefined reference error" ...
> 
> -------------------------------------------------------------
> Building Makefile: "C:\Projects\DocuSort\Makefile.win"
> Executing  make...
> mingw32-make.exe -f "C:\Projects\DocuSort\Makefile.win" all
> g++.exe -c Ctrl.cpp -o Ctrl.o -I"C:/MinGW/include" 
> -I"C:/Dev-Cpp/Include"  -I"C:/MinGW/include/c++"  -I"C:/MinGW/include" 
> -I"C:/Dev-Cpp/Include"  -D_WIN32_IE=0x0300 -g3 -DSTRICT -s -mwindows
> g++.exe Main.o Class.o Maker.o Icon.o Procedure.o Commander.o View.o
> MenuTable.o Cmd.o Menu.o Exception.o Ctrl.o DocuSort_private.res -o
> "DocuSort.exe" -L"C:/MinGW/lib" -L"C:/Dev-Cpp/Lib" -lcomctl32
> -I"C:/MinGW/include"  -I"C:/Dev-Cpp/Include"  -I"C:/MinGW/include/c++" 
> -I"C:/MinGW/include"  -I"C:/Dev-Cpp/Include"  -D_WIN32_IE=0x0300 -g3
> -DSTRICT -s -mwindows Main.o: In function `ZN4Menu5MakerD2Ev':
> c:/mingw/include/c++/3.2/memory(.data$_ZTVN3Win10ControllerE+0x10):
> undefined reference to `Win::Controller::OnCreate(Win::CreateData
> const*, bool&)'
> Main.o: In function `WinMain':
> C:/Projects/DocuSort/Main.cpp:9: undefined reference to
> `Win::Controller::OnInitPopup(HMENU__*, int)' mingw32-make.exe: ***
> [DocuSort.exe] Error 1 Execution terminated
> -----------------------------------------------------------------------
> 
>  which i posted and was advised to make sure that the file defines the
> flaged functions are added to the project. This I have checked and
> seems to be okay. In fact the functions in question are defined in
> Control.h which in turn is included in Ctrl.h. Below is the content of
> Control.h.
> 
> #if !defined (CONTROL_H)
> #define CONTROL_H
> 
> #include <windows.h>
> #include "Window.h"
> #include "Procedure.h"
> 
> namespace Win
> {
> 	class Controller
> 	{
> 		friend LRESULT CALLBACK Procedure (HWND hwnd, 
> 						UINT message, WPARAM wParam, LPARAM lParam);
> 
> 		void SetWindowHandle (HWND hwnd) { _h = hwnd; }
> 	public:
> 		virtual ~Controller () {}
> 		virtual bool OnCreate (Win::CreateData const * create, bool &
> success) throw ();
> 		virtual bool OnDestroy () throw ()
> 			{ return false; }
> 		virtual bool OnMouseMove (int x, int y,	KeyState kState)  throw ()
> 			{ return false; }
> 		virtual bool OnInitPopup (HMENU menu, int pos) throw ();
> 	protected:
> 		HWND  _h;
> 	};
> }
> 
> #endif
> 
> I still however have the same error as above. I'll appreciate your help
>  please.
> 
> Napoleon.
> 
> 
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