VM140/K8061.lib 64 Bit

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1

I used to bind your library as *.lib file in the 32- bit world into my C++ project (VS).
In the 64- bit version there is no *.lib file anymore.
Could you please make it accessable by download?

Otherwise I have to access the DLL by LoadLibrary etc.
Could you a post an example of this in C+± code.
I always fail to open the dll by LoadLibrary althrough I can open the same file with fopen and read characters out of it.

HMODULE hLib;
FILE * fd;
char c;

fd = fopen("K8061.dll", "r");
c = getc(fd); // gets something

hLib = LoadLibrary((LPCWSTR)"K8061.dll");
DWORD derr = GetLastError(); // gets 126 i.e. file not found
2

I’m sorry, no .lib file available at the moment.
Here is an example how you can use LoadLibrary and GetProcAddress to access the DLL:

[code]// vm8061_console_app.cpp : main project file.

#include “stdafx.h”
#include
#include <windows.h>
#include

using namespace System;
using namespace std;

typedef void(WINAPI *t_func0)();
typedef void(WINAPI *t_func1)(int);
typedef void(WINAPI *t_func2)(int, int);
typedef void(WINAPI *t_func3)(int, int, int);
typedef void(WINAPI * t_func4)(int, int *);
typedef int(WINAPI *t_func5)();
typedef int(WINAPI *t_func6)(int);
typedef int(WINAPI *t_func7)(int, int);
typedef bool(WINAPI *t_func8)(int, int );

t_func5 OpenDevice;
t_func0 CloseDevices;
t_func0 Version;
t_func7 ReadAnalogChannel;
t_func4 ReadAllAnalog;
t_func3 OutputAnalogChannel;
t_func4 OutputAllAnalog;
t_func2 ClearAnalogChannel;
t_func1 ClearAllAnalog;
t_func2 SetAnalogChannel;
t_func1 SetAllAnalog;
t_func2 OutputAllDigital;
t_func2 ClearDigitalChannel;
t_func1 ClearAllDigital;
t_func2 SetDigitalChannel;
t_func1 SetAllDigital;
t_func8 ReadDigitalChannel;
t_func6 ReadAllDigital;

int init();

HINSTANCE hDLL;
int foundDLL = 0;

//int main(array<System::String ^> ^args)
int main(void)
{
int CardAddress;
int dataOut[8] = {20, 50, 70, 100, 120, 150, 180, 220};
int dataIn[8];

int h = init();
if (!h)
{
	cout << "DLL found" << endl;
	foundDLL = 1;
}
else
{
	cout << "DLL not found" << endl;
	cout << "Error code: " << h << endl;		
    cout << "Press a key to exit." << endl;
    cin.get();
}
if (foundDLL)
{
	CardAddress = OpenDevice();
	if (CardAddress >= 0)
	{
		cout << "Card #"<< CardAddress << " opened." << endl;
	}
	else
	{
		cout << "Card not found" << endl;
	}
}
if (foundDLL)
{     
    cout << "Press Enter to \"SetAllDigital\"" << endl;
    cin.get();
    SetAllDigital(CardAddress);
    cout << "Press Enter to \"OutputAllDigital 0x55\"" << endl;
    cin.get();
    OutputAllDigital(CardAddress, 0x55);
    cout << "Press Enter to \"ReadAllDigital\"" << endl;
    cin.get();
    int i = ReadAllDigital(CardAddress);
    cout << i << endl;        
    cout << "Press Enter to \"ClearAllDigital\"" << endl;
    cin.get();        
    ClearAllDigital(CardAddress);
    cout << "Press Enter to \"OutputAllAnalog dataOut\"" << endl;
    cin.get();
    OutputAllAnalog(CardAddress, dataOut);        
    cout << "Press Enter to \"ReadAllAnalog dataIn\"" << endl;
    cin.get();
    ReadAllAnalog(CardAddress, dataIn);        
    for (int i = 0; i < 8; i++)
    {
        cout << "dataIn[" << i << "] = " << dataIn[i] << endl;
    }
    cout << "Press Enter to \"CloseDevices\" and to \"FreeLibrary\"" << endl;
    cin.get();          	
    CloseDevices();
    FreeLibrary(hDLL);
}
return 0;

}

int init()
{
hDLL = LoadLibrary((LPCWSTR)L"K8061.DLL");
if (hDLL != NULL)
{
OpenDevice = (t_func5) GetProcAddress(hDLL, “OpenDevice”);
if (!OpenDevice)
{ // handle the error
FreeLibrary(hDLL);
return -2;
}
CloseDevices = (t_func0) GetProcAddress(hDLL, “CloseDevices”);
if (!CloseDevices)
{ // handle the error
FreeLibrary(hDLL);
return -3;
}
ReadAnalogChannel = (t_func7) GetProcAddress(hDLL, “ReadAnalogChannel”);
if (!ReadAnalogChannel)
{ // handle the error
FreeLibrary(hDLL);
return -4;
}
ReadAllAnalog = (t_func4) GetProcAddress(hDLL, “ReadAllAnalog”);
if (!ReadAllAnalog)
{ // handle the error
FreeLibrary(hDLL);
return -5;
}
OutputAnalogChannel = (t_func3) GetProcAddress(hDLL, “OutputAnalogChannel”);
if (!OutputAnalogChannel)
{ // handle the error
FreeLibrary(hDLL);
return -6;
}
OutputAllAnalog = (t_func4) GetProcAddress(hDLL, “OutputAllAnalog”);
if (!OutputAllAnalog)
{ // handle the error
FreeLibrary(hDLL);
return -7;
}
ClearAnalogChannel = (t_func2) GetProcAddress(hDLL, “ClearAnalogChannel”);
if (!ClearAnalogChannel)
{ // handle the error
FreeLibrary(hDLL);
return -8;
}
ClearAllAnalog = (t_func1) GetProcAddress(hDLL, “ClearAllAnalog”);
if (!ClearAllAnalog)
{ // handle the error
FreeLibrary(hDLL);
return -9;
}
SetAnalogChannel = (t_func2) GetProcAddress(hDLL, “SetAnalogChannel”);
if (!SetAnalogChannel)
{ // handle the error
FreeLibrary(hDLL);
return -10;
}
SetAllAnalog = (t_func1) GetProcAddress(hDLL, “SetAllAnalog”);
if (!SetAllAnalog)
{ // handle the error
FreeLibrary(hDLL);
return -11;
}
OutputAllDigital = (t_func2) GetProcAddress(hDLL, “OutputAllDigital”);
if (!OutputAllDigital)
{ // handle the error
FreeLibrary(hDLL);
return -12;
}
ClearDigitalChannel = (t_func2) GetProcAddress(hDLL, “ClearDigitalChannel”);
if (!ClearDigitalChannel)
{ // handle the error
FreeLibrary(hDLL);
return -13;
}
ClearAllDigital = (t_func1) GetProcAddress(hDLL, “ClearAllDigital”);
if (!ClearAllDigital)
{ // handle the error
FreeLibrary(hDLL);
return -14;
}
SetDigitalChannel = (t_func2) GetProcAddress(hDLL, “SetDigitalChannel”);
if (!SetDigitalChannel)
{ // handle the error
FreeLibrary(hDLL);
return -15;
}
SetAllDigital = (t_func1) GetProcAddress(hDLL, “SetAllDigital”);
if (!SetAllDigital)
{ // handle the error
FreeLibrary(hDLL);
return -16;
}
ReadDigitalChannel = (t_func8) GetProcAddress(hDLL, “ReadDigitalChannel”);
if (!ReadDigitalChannel)
{ // handle the error
FreeLibrary(hDLL);
return -17;
}
ReadAllDigital = (t_func6) GetProcAddress(hDLL, “ReadAllDigital”);
if (!ReadAllDigital)
{ // handle the error
FreeLibrary(hDLL);
return -18;
}
/* Version = (t_func0) GetProcAddress(hDLL, “Version”);
if (!Version)
{ // handle the error
FreeLibrary(hDLL);
return -19;
}
*/
return 0; // OK
}
return -1; // error load DLL
}[/code]

3

Linking the *.lib- File would have been easier;).

I tried your code and it works fine, thank you.
Very elegant solution with the pointers at the function names.