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

TCustomForm.OnWindowStateChange

Handler called when the form is minimized, maximized or restored.

Declaration

Source position: forms.pp line 819

public property TCustomForm.OnWindowStateChange : TNotifyEvent
  read FOnWindowStateChange
  write FOnWindowStateChange;

Description

OnWindowStateChange is a TNotifyEvent property which represents the event handler signalled when the value for the WindowState property is changed. OnWindowStateChange is triggered (when assigned) from the Resizing method, and occurs when the WM_SIZE window message for the action is handled.

See TWindowState for details about the values and meanings in the enumeration.

See also

TCustomForm.WindowState

  

Indicates whether the form is displayed in a minimized, maximized, full-screen or normal state.

TCustomForm.Resizing

  

Performs actions needed when the form processes the WMSize message.

TCustomForm.WMSize

  

Handles the LM_SIZE window message for the form.

TWindowState

  

Represents the actual State of the window on the screen.
Version 3.2 Generated 2024-02-25 Home