SKBitmap.ExtractAlpha Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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.
Applies to
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for