QCOffscreenCanvas Class
QCOffscreenCanvas represents an offscreen canvas that QCPainter can target. More...
| Header: | #include <QCOffscreenCanvas> |
Detailed Description
An offscreen canvas is essentially a color buffer (a QRhiTexture), and possibly other associated graphics resources. After content has been rendered into the canvas's color buffer, the canvas can be registered to the painter to retrieve a QCImage that can then be used in drawImage() calls or as an image pattern.
To create an offscreen canvas, call QCPainter::createCanvas(). To target with with draw commands, call QRhiPaintDriver::beginPaint() when working with the lower level API, or QCPainterWidget::beginCanvasPainting() or QQuickCPainterRenderer::beginCanvasPainting() when using the QCPainter convenience widget and item implementations.
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