QExposeEvent ¶

概要 ¶

详细描述 ¶

Expose events are sent to windows when an area of the window is invalidated, for example when window exposure in the windowing system changes.

A Window with a client area that is completely covered by another window, or is otherwise not visible may be considered obscured by Qt and may in such cases not receive expose events.

事件处理程序 exposeEvent() receives expose events.

class QExposeEvent ( rgn ) ¶

param rgn

QRegion

构造曝光事件为给定 exposeRegion 其必须在局部坐标中。

PySide2.QtGui.QExposeEvent. rgn ¶

PySide2.QtGui.QExposeEvent. region ( ) ¶

返回类型

QRegion

Returns the window area that has been exposed. The region is given in local coordinates.