QRasterWindow ¶

详细描述 ¶

QRasterWindow 是 QWindow with a raster-based, non-OpenGL surface. On top of the functionality offered by QWindow , QRasterWindow adds a virtual paintEvent() function and the possibility to open a QPainter on itself. The underlying paint engine will be the raster one, meaning that all drawing will happen on the CPU. For performing accelerated, OpenGL-based drawing, use QOpenGLWindow 代替。

Internally the class is thin wrapper for QWindow and QBackingStore and is very similar to the 光栅窗口范例 that uses these classes directly.

另请参阅

paintEvent() update()

class QRasterWindow ( [ parent=None ] ) ¶

param parent

QWindow

构造新 QRasterWindow with parent .