SKBitmap Constructors
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
| SKBitmap() |
Default constructor that creates a bitmap with zero width and height, and no pixels. Its color type is set to Unknown. |
| SKBitmap(SKImageInfo) |
Constructor that configures the bitmap based on an SKImageInfo specification. |
| SKBitmap(SKImageInfo, SKBitmapAllocFlags) |
Constructor that configures the bitmap based on an SKImageInfo specification. |
| SKBitmap(SKImageInfo, SKColorTable) |
Obsolete.
Constructor that configures the bitmap based on an SKImageInfo specification and a color table. |
| SKBitmap(SKImageInfo, Int32) |
Constructor that configures the bitmap based on an SKImageInfo specification, and the specified number of bytes per row (the stride size) |
| SKBitmap(SKImageInfo, SKColorTable, SKBitmapAllocFlags) |
Obsolete.
Constructor that configures the bitmap based on an SKImageInfo specification and a color table. |
| SKBitmap(Int32, Int32, Boolean) |
Creates a bitmap with the given width, height and opacity with color type set to PlatformColorType |
| SKBitmap(Int32, Int32, SKColorType, SKAlphaType) |
Creates a bitmap with the given width, height, color type and alpha type. |
| SKBitmap(Int32, Int32, SKColorType, SKAlphaType, SKColorSpace) |
SKBitmap()
Default constructor that creates a bitmap with zero width and height, and no pixels. Its color type is set to Unknown.
public SKBitmap ();Remarks
This constructor does not allocate a backing store for the bitmap.
Applies to
SKBitmap(SKImageInfo)
Constructor that configures the bitmap based on an SKImageInfo specification.
public SKBitmap (SkiaSharp.SKImageInfo info);Parameters
- info
- SKImageInfo
The description of the desired image format.
Remarks
This constructor might throw an exception if it is not possible to create a bitmap with the specified configuration (for example, the image info requires a color table, and there is no color table).
Applies to
SKBitmap(SKImageInfo, SKBitmapAllocFlags)
Constructor that configures the bitmap based on an SKImageInfo specification.
public SKBitmap (SkiaSharp.SKImageInfo info, SkiaSharp.SKBitmapAllocFlags flags);Parameters
- info
- SKImageInfo
The description of the desired image format.
- flags
- SKBitmapAllocFlags
The additional flags.
Remarks
This constructor might throw an exception if it is not possible to create a bitmap with the specified configuration (for example, the image info requires a color table, and there is no color table).
Applies to
SKBitmap(SKImageInfo, SKColorTable)
Caution
The Index8 color type and color table is no longer supported. Use SKBitmap(SKImageInfo) instead.
Constructor that configures the bitmap based on an SKImageInfo specification and a color table.
public SKBitmap (SkiaSharp.SKImageInfo info, SkiaSharp.SKColorTable ctable);[System.Obsolete("The Index8 color type and color table is no longer supported. Use SKBitmap(SKImageInfo) instead.")]
public SKBitmap (SkiaSharp.SKImageInfo info, SkiaSharp.SKColorTable ctable);Parameters
- info
- SKImageInfo
The description of the desired image format.
- ctable
- SKColorTable
The color lookup table.
- Attributes
Remarks
Use this method to create a bitmap that will use a color lookup table. The bitmap will be an 8-bit indexed bitmap, where each value represents an index into the color table, and the color is determined by the value in the specific location in the color table array.
Applies to
SKBitmap(SKImageInfo, Int32)
Constructor that configures the bitmap based on an SKImageInfo specification, and the specified number of bytes per row (the stride size)
public SKBitmap (SkiaSharp.SKImageInfo info, int rowBytes);Parameters
- info
- SKImageInfo
The description of the desired image format.
- rowBytes
- Int32
The number of bytes per row.
Remarks
This constructor might throw an exception if it is not possible to create a bitmap with the specified configuration (for example, the image info requires a color table, and there is no color table).
Applies to
SKBitmap(SKImageInfo, SKColorTable, SKBitmapAllocFlags)
Caution
The Index8 color type and color table is no longer supported. Use SKBitmap(SKImageInfo, SKBitmapAllocFlags) instead.
Constructor that configures the bitmap based on an SKImageInfo specification and a color table.
public SKBitmap (SkiaSharp.SKImageInfo info, SkiaSharp.SKColorTable ctable, SkiaSharp.SKBitmapAllocFlags flags);[System.Obsolete("The Index8 color type and color table is no longer supported. Use SKBitmap(SKImageInfo, SKBitmapAllocFlags) instead.")]
public SKBitmap (SkiaSharp.SKImageInfo info, SkiaSharp.SKColorTable ctable, SkiaSharp.SKBitmapAllocFlags flags);Parameters
- info
- SKImageInfo
The description of the desired image format.
- ctable
- SKColorTable
The color lookup table.
- flags
- SKBitmapAllocFlags
The additional flags.
- Attributes
Remarks
Use this method to create a bitmap that will use a color lookup table. The bitmap will be an 8-bit indexed bitmap, where each value represents an index into the color table, and the color is determined by the value in the specific location in the color table array.
Applies to
SKBitmap(Int32, Int32, Boolean)
Creates a bitmap with the given width, height and opacity with color type set to PlatformColorType
public SKBitmap (int width, int height, bool isOpaque = false);Parameters
- width
- Int32
The desired width in pixels.
- height
- Int32
The desired height in pixels.
- isOpaque
- Boolean
If true, sets the SKAlphaType to Opaque, otherwise it sets it to Premul.
Remarks
This constructor might throw an exception if it is not possible to create a bitmap with the specified configuration (for example, the image info requires a color table, and there is no color table).
Applies to
SKBitmap(Int32, Int32, SKColorType, SKAlphaType)
Creates a bitmap with the given width, height, color type and alpha type.
public SKBitmap (int width, int height, SkiaSharp.SKColorType colorType, SkiaSharp.SKAlphaType alphaType);Parameters
- width
- Int32
The desired width in pixels.
- height
- Int32
The desired height in pixels.
- colorType
- SKColorType
The desired SKColorType.
- alphaType
- SKAlphaType
The desired SKAlphaType.
Remarks
This constructor might throw an exception if it is not possible to create a bitmap with the specified configuration (for example, the image info requires a color table, and there is no color table).
Applies to
SKBitmap(Int32, Int32, SKColorType, SKAlphaType, SKColorSpace)
public SKBitmap (int width, int height, SkiaSharp.SKColorType colorType, SkiaSharp.SKAlphaType alphaType, SkiaSharp.SKColorSpace colorspace);Parameters
- width
- Int32
- height
- Int32
- colorType
- SKColorType
- alphaType
- SKAlphaType
- colorspace
- SKColorSpace
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