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DocumentationTencent Cloud Super App as a ServiceGuildlines for Mini Program DevelopmentAPICanvasOffscreenCanvas
OffscreenCanvas
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Last updated: 2024-11-21 18:41:53
OffscreenCanvas
Last updated: 2024-11-21 18:41:53
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Function Description: Offscreen canvas instances can be created through wx.createOffscreenCanvas.

Attribute

Attributes
Types
Note
width
number
Canvas Width
height
number
Canvas Height

Method Set

createImage

The method is utilized as Image OffscreenCanvas.createImage()
Function Description: This creates an image object. It is compatible with both 2D Canvas and WebGL Canvas, however, it does not support the mixed use of 2D and WebGL methods.
Return Value: Image. Please note that the mixed use of image objects created by WebGL and 2D canvas is not permitted. When using, it is advisable to create image objects using the canvas's own createImage.

getContext

The method is utilized as RenderingContext OffscreenCanvas.getContext(string contextType)
Function Description: This method returns the drawing context of the OffscreenCanvas.
Parameters and Description: string contextType, the type of drawing context, which needs to be consistent with the type passed in when creating OffscreenCanvas.
Value
Note
webgl
WebGL type context
2d
2D type

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