Dear All

Now, I'm trying to follow the Excel VBA using the DLL.
and I'm referencing https://sites.google.com/site/jrlhost/links/excelcdll

after done, when I run the macro, I've got a message pop-up window witch has " Runtime error,Excel VBA can't find DLL" message..




CPP :


double _stdcall square (double *x)
{
return *x * *x;
}


DEF :

LIBRARY "square"
EXPORTS
square



VBA :

Option Explicit


' Declare the function that's in the DLL

Private Declare PtrSafe Function squareForEXL Lib "F:\work\dll_test\Debug\dll_test.dll" (ByRef x As Double) As Double

' Use function on worksheet
Function squareOnWorksheet(dArg As Double) As Double
squareOnWorksheet = squareForEXL(dArg)
End Function

' Example using the function from VBA
Sub useSquareInVBA()
MsgBox squareForEXL(10)
End Sub



But I've got still error
What am I supposed to do?