# wx.SizeEvent¶

A size event holds information about size change events of wx.Window.

The EVT_SIZE handler function will be called when the window has been resized.

You may wish to use this for frames to resize their child windows as appropriate.

Note that the size passed is of the whole window: call wx.Window.GetClientSize for the area which may be used by the application.

When a window is resized, usually only a small part of the window is damaged and you may only need to repaint that area. However, if your drawing depends on the size of the window, you may need to clear the DC explicitly and repaint the whole window. In which case, you may need to call wx.Window.Refresh to invalidate the entire window.

Important : Sizers ( see Sizers Overview ) rely on size events to function correctly. Therefore, in a sizer-based layout, do not forget to call Skip on all size events you catch (and don’t catch size events at all when you don’t need to).

## Events Emitted by this Class¶

Handlers bound for the following event types will receive a wx.SizeEvent parameter.

• EVT_SIZE: Process a wxEVT_SIZE event.

## Class Hierarchy¶

Inheritance diagram for class SizeEvent:

## Methods Summary¶

 __init__ Constructor. GetRect GetSize Returns the entire size of the window generating the size change event. SetRect SetSize

## Class API¶

class wx.SizeEvent(Event)

Possible constructors:

SizeEvent(sz, id=0)


A size event holds information about size change events of Window.

### Methods¶

__init__(self, sz, id=0)

Constructor.

Parameters

GetRect(self)
Return type

wx.Rect

GetSize(self)

Returns the entire size of the window generating the size change event.

This is the new total size of the window, i.e. the same size as would be returned by wx.Window.GetSize if it were called now. Use wx.Window.GetClientSize if you catch this event in a top level window such as wx.Frame to find the size available for the window contents.

Return type

wx.Size

SetRect(self, rect)
Parameters

rect (wx.Rect) –

SetSize(self, size)
Parameters

size (wx.Size) –

### Properties¶

Rect

Size