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Added ContentObject.CanAdd() method to check whether a ContentObject of the specified type can be added to the current object.
Added ContentObject.CanAddContentControl() method to check whether a ContentControl of the specified type can be added to the current object.
Added Body.CanAdd() method to check whether a ContentObject of the specified type can be added to the current body.
Added Body.CanAddContentControl() method to check whether a ContentControl of the specified type can be added to the current body.
Added Section.CanAdd() method to check whether a ContentObject of the specified type can be added to the current section.
Added Section.CanAddContentControl() method to check whether a ContentControl of the specified type can be added to the current section.
Added the following support for picture effects:
[Picture effects] RecolorType enum: specifies the type of an image color change.
[Picture effects] ImageEffectType enum: specifies the image effect type.
[Picture effects] UserColor class: represents an extended color.
[Picture effects] WebVideoProperties class: represents properties for displaying an online video to the user.
[Picture effects] ImageEffect class (derived from FormattingBag): the abstract base class for image effects.
[Picture effects] AlphaBiLevel class: represents an Alpha bi-level effect.
[Picture effects] AlphaCeiling class: represents an alpha ceiling effect.
[Picture effects] AlphaFloor class: represents an alpha floor effect.
[Picture effects] AlphaInverse class: represents an alpha inverse effect.
[Picture effects] AlphaModulation class: represents an alpha modulate fixed effect.
[Picture effects] AlphaModulationComplex class: represents an alpha modulate complex effect.
[Picture effects] AlphaReplace class: represents an alpha replace effect.
[Picture effects] BiLevel class: represents a bi-level (black/white) effect.
[Picture effects] ColorChange class: represents a color change effect.
[Picture effects] ColorReplacement class: represents a solid color replacement effect.
[Picture effects] Duotone class: represents a duotone effect.
[Picture effects] Grayscale class: represents a grayscale effect.
[Picture effects] HslEffect class: represents a hue, saturation, or luminance effect.
[Picture effects] Luminance class: represents a luminance effect.
[Picture effects] Tint class: represents a tint effect.
[Picture effects] ImageEffectList class: represents a list of image effects.
[Picture effects] EmbeddedImageData class: represents embedded image data.
[Picture effects] New members have been added to the PicturePreset enum.
[Picture effects] New members have been added to the ImageData class.
Updated OpenXml library version to 2.20.
[Picture effects] Blur and FillOverlay classes now derive from ImageEffect (previously they derived directly from FormattingBag).