class Archives - Page 3 of 7 - Simon Technology Blog

Delphi calls the master’s method (to build a procedure of object)

Delphi can call the method of the parent class through inherited, but it does not provide a method to directly call the parent class of the parent class (the grandfather class). The implementation

October 5, 2021By Simo Delphi build, call, class, Delphi, grandfather, method, object, one, own, procedureLeave a Comment

Lua – Corona SDK – Calling an instance or class method from EventListener

I have a Foo class (well, a pseudo-class) set as follows:

–in foo.lua
Foo = {}
–constructor
function Foo:new(x, y)
–the new instance
local foo = display. newImage(“foo.png”)
– set some

October 5, 2021By Simo Lua call, class, Corona, EventListener, instance, lua, method, SDKLeave a Comment

Delphi – Why does a class need an empty method to call it?

I am evaluating an existing dependency injection library for Delphi, and settled on delphidicontainer due to its simplicity-it only requires a unit file!

However, there is one thing I don’t u

October 5, 2021By Simo Delphi call, class, Delphi, empty, method, need, one, whyLeave a Comment

Delphi – Repeat Identifier of Attributes and Method Parameters

I transferred my project from Delphi to Lazarus. In a form, I have a private method with a parameter var Active: Boolean. It’s okay in Delphi, but Lazarus gives an error : Repeat the identifier “Ac

October 5, 2021By Simo Delphi attribute, class, Delphi, identifier, method, parameter, repetitionLeave a Comment

Another method of the class is called Lua

When I try to call a method of another class from another class, it will display an error message,

Attempt to call field’LoadShift’ (a nil value) This is my code,
loginpage1.lua

local L

October 5, 2021By Simo Lua Another, called Lua, class, methodLeave a Comment

Is DELPHI and CMT compatible?

I need to call some C code from Delphi. The C code needs to be able to call back into the Delphi code. The example Calling a callback function in Delphi from a C++ DLL shown here is very effective.

October 5, 2021By Simo Delphi class, compatible, Delphi, is it, vmtLeave a Comment

Array – Create an instance from a class array

My class definition is:

TAnimal = class(TInterfacedObject)
public
constructor Create; overload;
constructor Create(param: string); overload;
end;
IAnimal = interface
procedure DoSomething;

October 5, 2021By Simo Delphi array, class, creation, instanceLeave a Comment

Tag: class