Automatically generate Clipper calling convention constructors for classes without constructor
Syntax
-vo16[+|-]
Arguments
| + | - | Specifying +, or just -vo16, tells the compiler to automatically generate constructors with the same signature as the constructors of the parent class |
To set this compiler option in the Visual Studio development environment:
1.Open the project's Properties page.
2.Click the Dialect tab.
3.Change the value.
4.Click here to see the property page
Example
CLASS Event
EXPORT hWnd AS PTR
EXPORT uMsg AS DWORD
EXPORT wParam AS DWORD
EXPORT lParam AS LONG
EXPORT oWindow AS OBJECT
CONSTRUCTOR(_hWnd, _uMsg, _wParam, _lParam, _oWindow)
SELF:hWnd := _hWnd
SELF:uMsg := _uMsg
SELF:wParam := _wParam
SELF:lParam := _lParam
SELF:oWindow := _oWindow
END CLASS
CLASS ControlEvent INHERIT Event
END CLASS
In the code above the compiler would generate a constructor for the ControlEvent class. This constructor will pass all the parameters to the constructor of the Event class.
The generated constructor would look like:
CONSTRUCTOR(_hWnd, _uMsg, _wParam, _lParam, _oWindow)
SUPER(_hWnd, _uMsg, _wParam, _lParam, _oWindow)
