SKBitmap.ExtractAlpha Method
Definition
Important
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Overloads
| ExtractAlpha(SKBitmap, SKPointI) |
Retrieve the alpha layer of this bitmap. |
| ExtractAlpha(SKBitmap, SKPaint, SKPointI) |
Retrieve the alpha layer of this bitmap after applying the specified paint. |
| ExtractAlpha(SKBitmap) |
Retrieve the alpha layer of this bitmap. |
| ExtractAlpha(SKBitmap, SKPaint) |
Retrieve the alpha layer of this bitmap after applying the specified paint. |
ExtractAlpha(SKBitmap, SKPointI)
Retrieve the alpha layer of this bitmap.
public bool ExtractAlpha (SkiaSharp.SKBitmap destination, out SkiaSharp.SKPointI offset);Parameters
- destination
- SKBitmap
The bitmap to be filled with alpha layer.
- offset
- SKPointI
The top-left coordinate to position the retrieved bitmap so that it visually lines up with the original.
Returns
Returns true if the alpha layer was retrieved, false otherwise.
Applies to
ExtractAlpha(SKBitmap, SKPaint, SKPointI)
Retrieve the alpha layer of this bitmap after applying the specified paint.
public bool ExtractAlpha (SkiaSharp.SKBitmap destination, SkiaSharp.SKPaint paint, out SkiaSharp.SKPointI offset);Parameters
- destination
- SKBitmap
The bitmap to be filled with alpha layer.
- paint
- SKPaint
The paint to draw with.
- offset
- SKPointI
The top-left coordinate to position the retrieved bitmap so that it visually lines up with the original.
Returns
Returns true if the alpha layer was retrieved, false otherwise.
Applies to
ExtractAlpha(SKBitmap)
ExtractAlpha(SKBitmap, SKPaint)
Retrieve the alpha layer of this bitmap after applying the specified paint.
public bool ExtractAlpha (SkiaSharp.SKBitmap destination, SkiaSharp.SKPaint paint);Parameters
- destination
- SKBitmap
The bitmap to be filled with alpha layer.
- paint
- SKPaint
The paint to draw with.
Returns
Returns true if the alpha layer was retrieved, false otherwise.
