Vcl.Dialogs.TCustomTaskDialog.CallbackProc

• Up to Parent: TCustomTaskDialog

Delphi

function CallbackProc(hwnd: HWND; msg: UINT; wParam: WPARAM;
lParam: LPARAM; lpRefData: LONG_PTR): HResult; dynamic;

C++

DYNAMIC HRESULT __fastcall CallbackProc(HWND hwnd, unsigned msg, unsigned wParam, int lParam, int lpRefData);

Properties

Type	Visibility	Source	Unit	Parent
function	protected	Vcl.Dialogs.pas Vcl.Dialogs.hpp	Vcl.Dialogs	TCustomTaskDialog

Description

An application-defined function used with Task Dialogs.

Use CallbackProc as an application-defined function used with the TaskDialogIndirect function. It receives messages from the Task Dialog when various events occur. An application must register this callback function. .