System.Classes.AllocateHWnd

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Delphi

function AllocateHWnd(const AMethod: TWndMethod): HWND;

C++

extern DELPHI_PACKAGE HWND __fastcall AllocateHWnd(const TWndMethod AMethod);

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.Classes.pas System.Classes.hpp	System.Classes	System.Classes

Description

Creates a window that implements a specified window procedure.

Call AllocateHWnd to create a window that is not associated with a windowed control. Typically, this method is used to create non-visual windows that respond to messages but that do not appear in the user interface. For example, the TTimer component uses this method to create a window that responds to timer messages from Windows.

The Method parameter specifies the window procedure that the generated window uses to respond to messages.

AllocateHWnd returns the handle of the newly created window.

Note: Use the DeallocateHWnd procedure to free windows that are created using AllocateHWnd.

See Also

• DeallocateHWnd

• TWndMethod

Code Examples

• TTimerFWindowHandle (Delphi)