Re: function won't work inside MFC dialog class

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Z.K. wrote:
I had to put my gotSensor outside of my class to make it work. If I put it in my dialog header file I get the following error:

error C2276: '&' : illegal operation on bound member function expression

How do I make this work inside the class or how do I access a control on the dialog form from outside the class. It works fine in a Win32 console application, but I need to convert it to a MFC program.

Z.K.

//////////////////////////////////////////////////////////////////////////

//outside of class
int __stdcall gotSensor(CPhidgetInterfaceKitHandle phid, void *meh, int ind, int val);


void CTestWin32PhidgetDlg::OnBtnSensor()
{
// TODO: Add your control notification handler code here

int something;

CPhidgetInterfaceKitHandle ifkit;

CPhidgetInterfaceKit_open(&ifkit,0,-1);
CPhidgetInterfaceKit_set_OnSensorChange_Handler(ifkit,&gotSensor, &something);

while(1)
{
CPhidgetInterfaceKit_read(ifkit);
}

}


//outside of class
int __stdcall gotSensor(CPhidgetInterfaceKitHandle phid, void *meh, int ind, int val)
{
CString temp;
temp = "hello";

//AfxMessageBox("hello");
return 0;
}

Declaring your member function gotSensor() as static, if possible, will correct this problem (and then of course scope it properly when you pass the address). The way you're calling it here, the function signature, if it's a non-static member function, is not what you think it is -- the first parameter is a "this" pointer to its enclosing class.
.

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