[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'InterfaceBase' (#lcl)

TWidgetSet.SetWindowLong

Sets an attribute of a window.

Declaration

Source position: winapih.inc line 264

public function TWidgetSet.SetWindowLong(

  Handle: HWND;

  Idx: Integer;

  NewLong: PtrInt

):PtrInt; virtual;

Arguments

Handle

  

The window handle.

Idx

  

The attribute offset.

NewLong

  

The new value.

Function result

The previous value, zero on failure.

See also

TWidgetSet.GetWindowLong

  

Returns the attributes of a window.
Version 4.0 Generated 2025-05-03 Home