WebJan 13, 2015 · Delphi 'class of' use to create an object of a specific type. I have TParentObj = class (TComponent) and TChildObj = class (TParentObj). In addition I have a TCustomObj = class of TParentObj. I'm then wanting to create an object of Type parent OR Type Child depending on what a variable is. If 'child' is selected then a TChildObj … WebMay 30, 2024 · 0. To create an object instance straight from the DLL, provided you know it's exact path, this code should work: type T_DGCO = function (const CLSID, IID: TGUID; var Obj): HResult; stdcall; //DllGetClassObject var p: T_DGCO; f: IClassFactory; x: IMyObject; //replace by an interface of choice begin p := GetProcAddress (LoadLibrary …
How can I determine whether a Delphi object is of a specific class …
WebSep 9, 2016 · You can't use an external statement to import a COM object. You need to define the object's COM interfaces in Pascal code and then use CoCreateInstance () or equivalent function to instantiate the COM object at runtime, and then use the interfaces to access it. You can have the Delphi IDE import the .NET assembly so it can extract the … WebAug 19, 2016 · Delphi: Understanding constructors. when applied to object constructors. Every time i randomly add keywords until the compiler shuts up - and (after 12 years of developing with Delphi) i'd rather know what i'm doing, rather than trying things randomly. TComputer = class (TObject) public constructor Create (Cup: Integer); virtual; end ... can you temporarily disable linkedin
Understanding Delphi Class Methods - ThoughtCo
WebOct 12, 2024 · There are two objects: TFoo, TFoo2. There is also a class reference : TFooClass = class of TFoo; Both are descendants from TPersistent. They have their own constructors: type TFoo = class(TPersistent) private FC:Char; public constructor Create; virtual; published property C:Char read FC write FC; end; WebApr 19, 2015 · 1 Answer. All of your classes are in the implementation section, meaning they're not visible outside the unit itself. Move them to the interface section. unit uUser; interface uses classes,SysUtils,Dialogs; interface type TAddress = class private FStreetAddress : string; FCity : string ; FState : string; FZipCode : string; procedure ... WebApr 10, 2024 · How do I return the type of a class in a class method? In a regular method I can use self.ClassType, but there doesn't seem to be a class method on TObject that achieves this (although I can get the ClassName ). class function TSomething.MyClass: TClass; begin //what goes here? end; can you term an employee on std