Properties

[Amon Ra]

is there, in C++, such a thing as Property Get and Property Let?
Thanks
Amon Ra

[parksie]

In Standard C++, not as such. Microsoft C++ has extensions to allow this using __declspec. Normally you'd just use Get and Set functions:

class TestClass {
public:
    inline int GetValue() { return m_iValue; }
    inline void SetValue(int iValue) { m_iValue = iValue; }

private:
    int m_iValue;
};

Those inlines are there because if it's a one-liner the compiler can save the cost of a function call

[Zaei]

Yup.

class myClass
{
public:
    INT Get()
    {
        return myVal;
    }
    VOID Set(INT newVal)
    {
         myVal = newVal;
         return;
    }
    __declspec( property ( get = Get, put = Set))INT Value;
private:
    INT myVal;
}

...will allow...

myClass SomeVar;
SomeVar.Value = 10;
SomeVar.Set(10);  //Does the same thing as above

Z.

[parksie]

Why capitals on the type names?

[Amon Ra]

Thanks guys!
Amon Ra

[Zaei]

Dunno, just like the way they look. They fit with lots of other type names (especially Win32API types =). Ive been using them so much in the last couple of months, i cant stop. You can find them all in windows.h

Z.