# wx.MouseCaptureLostEvent¶

A mouse capture lost event is sent to a window that had obtained mouse capture, which was subsequently lost due to an “external” event (for example, when a dialog box is shown or if another application captures the mouse).

If this happens, this event is sent to all windows that are on the capture stack (i.e. called CaptureMouse, but didn’t call ReleaseMouse yet). The event is not sent if the capture changes because of a call to CaptureMouse or ReleaseMouse.

This event is currently emitted under Windows only.

## Events Emitted by this Class¶

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

• EVT_MOUSE_CAPTURE_LOST: Process a wxEVT_MOUSE_CAPTURE_LOST event.

MSW port.

Availability

Only available for MSW.

## Class Hierarchy¶

Inheritance diagram for class MouseCaptureLostEvent:

## Methods Summary¶

 __init__ Constructor.

## Class API¶

class wx.MouseCaptureLostEvent(Event)

Possible constructors:

MouseCaptureLostEvent(windowId=0)


A mouse capture lost event is sent to a window that had obtained mouse capture, which was subsequently lost due to an “external” event (for example, when a dialog box is shown or if another application captures the mouse).

### Methods¶

__init__(self, windowId=0)

Constructor.

Parameters

windowId (wx.WindowID) –