DLL Demo 1 - Empty DLL Project

"DllDemoEmpty1.dll" build using Visual-C++ (version 7.1 a.k.a. ".NET 2003")

click	file menu->new->project
click	Visual C++ Projects (in left hand pane)
click	Empty Project .net (in right hand pane)
enter	"DllDemoEmpty1" in the project name text box
click	ok
click	view menu->solution explorer (only if solution explorer is not visible in the left hand pane)
right click	on "DllDemoEmpty1" then click on "properties"
double click	on configuration properties
click	on general
click	on configuration type
select	"Dynamic Library (.dll)" from the drop down menu
click	on "Use Managed Extensions"
select	"No" from the drop down menu (we do not want to invoke the common language runtime)
click	"use of MFC"
select	"use standard Windows Libraries" from the drop down menu
click	"use of ATL"
select	"not using ATL" from the drop down menu
click	ok
right click	on the "header files" folder
click	"add->add new item" or "add->add existing item" to add file "DllDemoEmpty1.h"
right click	on the "source files" folder
click	"add-add new item" or "add->add existing item" to add file "DllDemoEmpty1.cpp"
right click	on the "DllDemoEmpty" project folder
click	on "rebuild"

//============================================================
// title  : DllDemoEmpty1.h
// purpose: required for DllDemoEmpty1.DLL
// author : Neil Rieck
// notes  : http://www3.sympatico.ca/n.rieck
//============================================================
#ifndef __DllDemoEmpty1_H				//
#define __DllDemoEmpty1_H				//
#ifndef __DllDemoEmpty1__				// define when calling from DLL
#define __DllDemoEmpty1LIB__ __declspec(dllimport)	// used when called from app
#else							//
#define __DllDemoEmpty1LIB__ __declspec(dllexport)	// used when called from demo
#endif							// ifndef else __DllDemoEmpty1__
//
// <<< prototype(s)
//
// these functions will be tagged for either import or export
//
__DllDemoEmpty1LIB__ unsigned long SimpleDouble( unsigned long whatever);
__DllDemoEmpty1LIB__ unsigned long SimpleTriple( unsigned long whatever);
#endif							// ifndef __DllDemoEmpty1_H

---

//============================================================
// title  : DllDemoEmpty1.cpp
// purpose: this program builds into DllDemoEmpty1.DLL
// author : Neil Rieck
// notes  : http://www3.sympatico.ca/n.rieck
//============================================================
#define __DllDemoEmpty1__	// force export mode
#include "DllDemoEmpty1.h"	// get exported prototypes
//
// note: this program doesn't have a function called DllMain()
//
//------------------------------------------------------------
// this function doubles whatever it receives
// (it has been marked for export in "DllDemoEmpty1.h")
//------------------------------------------------------------
unsigned long SimpleDouble( unsigned long whatever)
{	return (2 * whatever);
}
//------------------------------------------------------------
// this function triples whatever it receives
// (it has been marked for export in "DllDemoEmpty1.h")
//------------------------------------------------------------
unsigned long SimpleTriple( unsigned long whatever)
{	return (3 * whatever);
}

"DllDemoEmpty1Test.exe" build using Visual-C++ (version 6)

click	file->new->projects->"Console Application"
enter	"DllDemoEmpty1Test" in the project name text box
click	ok
select	a "Hello World" project
click	finish
edit	"DllDemoEmpty1Test.cpp" replace that code with the code below
copy	files "DllDemoEmpty1.h", "DllDemoEmpty1.lib", "DllDemoEmpty1.dll" to this directory
click	project->settings->link then add DllDemoEmpty1.lib to the end of the "Object/Library Modules" text box (just click inside the box then press the "end" key)
press	key "F7" to build

//============================================================
// title  : DllDemoEmpty1Test.cpp
// purpose: tests DllDemoEmpty1.DLL
// author : Neil Rieck
// notes  : http://www3.sympatico.ca/n.rieck
//============================================================
#include <iostream>
#include "DllDemoEmpty1.h" // get our function definitions

using std::cout;
using std::endl;

void main()
{   cout << "DllDemoEmpty1Test" << endl;
    cout << "=================" << endl;
    cout << "2*20=" << SimpleDouble(20) << endl;
    cout << "3*30=" << SimpleTriple(30) << endl;
}