harmony 鸿蒙drawing_canvas.h
drawing_canvas.h
Overview
Declares functions related to the canvas object in the drawing module.
Since: 8
Related Modules:
Summary
Functions
| Name | Description |
|---|---|
| OH_Drawing_CanvasCreate (void) | Creates an OH_Drawing_Canvas object. |
| OH_Drawing_CanvasDestroy (OH_Drawing_Canvas *) | Destroys an OH_Drawing_Canvas object and reclaims the memory occupied by the object. |
| OH_Drawing_CanvasBind (OH_Drawing_Canvas *, OH_Drawing_Bitmap *) | Binds a bitmap to a canvas so that the content drawn on the canvas is output to the bitmap (this process is called CPU rendering). |
| OH_Drawing_CanvasAttachPen (OH_Drawing_Canvas *, const OH_Drawing_Pen *) | Attaches a pen to a canvas so that the canvas will use the style and color of the pen to outline a shape. |
| OH_Drawing_CanvasDetachPen (OH_Drawing_Canvas *) | Detaches the pen from a canvas so that the canvas will not use the style and color of the pen to outline a shape. |
| OH_Drawing_CanvasAttachBrush (OH_Drawing_Canvas *, const OH_Drawing_Brush *) | Attaches a brush to a canvas so that the canvas will use the style and color of the brush to fill in a shape. |
| OH_Drawing_CanvasDetachBrush (OH_Drawing_Canvas *) | Detaches the brush from a canvas so that the canvas will not use the style and color of the brush to fill in a shape. |
| OH_Drawing_CanvasSave (OH_Drawing_Canvas *) | Saves the current canvas status (canvas matrix) to the top of the stack. |
| OH_Drawing_CanvasRestore (OH_Drawing_Canvas *) | Restores the canvas status (canvas matrix) saved on the top of the stack. |
| OH_Drawing_CanvasDrawLine (OH_Drawing_Canvas *, float x1, float y1, float x2, float y2) | Draws a line segment. |
| OH_Drawing_CanvasDrawPath (OH_Drawing_Canvas *, const OH_Drawing_Path *) | Draws a path. |
| OH_Drawing_CanvasClear (OH_Drawing_Canvas *, uint32_t color) | Clears a canvas by using a specified color. |
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