- DS.Documents.Html Assembly
-
DS.Documents.Imaging Assembly
- GrapeCity.Documents.Common
- GrapeCity.Documents.Drawing
- GrapeCity.Documents.Imaging.Exif
-
GrapeCity.Documents.Imaging
-
Classes
- BaseInplaceEffect
- BilevelBitmap
- BitmapRenderer
- BradleyThresholdingEffect
- BrightnessContrastEffect
- ColorMatrix5x4
- DitheringEffect
- EllipticFigure
- FreeFormPolygon
- GammaCorrectionEffect
- GaussianBlurEffect
-
GcBitmap
- Constructors
- Properties
-
Methods
- AddGlow
- AddShadow
- AdjustLevels
- AlphaBlend
- ApplyColorMatrix
- ApplyEffect
- ApplyLicenseKey
- ApplySoftEdges
- AutoLevel
- ApplyTransparencyMask
- BitBlt
- CalculateOtsuThreshold
- Clear
- Clip
- Clone
- CompositeAndBlend
- ConvertFromPremultipliedAlpha
- ConvertToOpaque
- ConvertToPremultipliedAlpha
- CreateGraphics
- CreateImage
- DiscardImage
- Dispose
- EnsureRendererCreated
- ExportColorChannel
- ExtractColors
- FlipRotate
- GenerateOctreePalette
- GetContentRect
- HasTransparentPixels
- ImportColorChannel
- IsBlackAndWhite
- IsGrayscale
- Load
- MergePalettes
- Resize
- SaveAsBmp
- SaveAsGif
- SaveAsIco
- SaveAsJpeg
- SaveAsTiff
- SaveAsPng
- SaveAsWebp
- SetDpi
- SetAlphaTo255
- SetLicenseKey
- ShrinkARGBFormat
- ToBilevelBitmap
- ToGrayscaleBitmap
- ToIndexed4bppBitmap
- ToIndexed8bppBitmap
- ToJpegStream
- GcBitmapGraphics
- GcBitmapGraphics.Path
- GcGifReader
- GcGifWriter
- GcIco
- GcTiffReader
- GcTiffWriter
- GifFrame
- GraphicsPath
- GrayscaleBitmap
- GrayscaleEffect
- HueRotationEffect
- IcoFrame
- Indexed4bppBitmap
- Indexed8bppBitmap
- LuminanceToAlphaEffect
- OpacityEffect
- OtsuThresholdingEffect
- PathBuilder
- RectangularFigure
- Region
- RoundRectFigure
- SaturationEffect
- SepiaEffect
- TemperatureAndTintEffect
- TiffFrame
- TiffFrameSettings
- Structs
- Interfaces
- Enums
-
Classes
- GrapeCity.Documents.Layout.Composition
- GrapeCity.Documents.Layout
- GrapeCity.Documents.Svg
- GrapeCity.Documents.Text
- DS.Documents.Imaging.Skia Assembly
- DS.Documents.Imaging.Windows Assembly
GrapeCity.Documents.Imaging.GcBitmap.HasTransparentPixels
HasTransparentPixels Method
HasTransparentPixels(Rectangle?)
Determines whether the image contains transparent or semitransparent pixels.
It always returns false for an opaque image.
Declaration
public bool HasTransparentPixels(Rectangle? clipRect = null)Public Function HasTransparentPixels(Optional clipRect As Rectangle? = Nothing) As BooleanParameters
| Type | Name | Description |
|---|---|---|
| Rectangle? | clipRect | The source rectangle of the GcBitmap. |
Returns
| Type | Description |
|---|---|
| bool |