Platforms to show: All Mac Windows Linux Cross-Platform

PNG

Classes and functions for handling PNG picture files.

• Globals
  • PictureToPNGStringMBS(pic as picture, gamma as single = 0.0) as string
  • PictureToPNGStringMBS(pic as picture, gamma as single, Interlace as Boolean, FilterType as Integer) as string
  • PictureToPNGStringMBS(pic as picture, mask as picture, gamma as single = 0.0) as string
  • PictureToPNGStringMBS(pic as picture, mask as picture, gamma as single, Interlace as Boolean, FilterType as Integer) as string
  • PNGStringToPictureMBS(data as string, gamma as single = 0.0, AllowDamaged as boolean = false) as picture
  • PNGStringToPNGPictureMBS(data as string, gamma as single = 0.0, AllowDamaged as boolean = false) as PNGPictureMBS
• Classes
  • class PNGpictureMBS
    • method CombinePictureWithMask as picture
    • shared method PNGLibVersion as string
    • property height as Integer
    • property mask as picture
    • property pict as picture
    • property width as Integer
  • class PNGReaderMBS
    • method ApplyOptions(gamma as double = 0.0, ScreenGamma as double = -1.0) as boolean
    • method CombinePictureWithMask as picture
    • method Open(file as folderitem, data as string) as boolean
    • method OpenData(data as string) as boolean
    • method OpenFile(file as folderitem) as boolean
    • method OpenFile(Path as String) as boolean
    • shared method PNGLibVersion as string
    • method ReadEXIF(byref exif as string) as boolean
    • method ReadHeader as Boolean
    • method ReadICCProfile(byref name as string, byref compression as Integer, byref profile as string) as boolean
    • method ReadPicture as boolean
    • method ReadRow as memoryblock
    • method ReadRow(mem as memoryblock) as boolean
    • method ReadRowAlphaOnly(mem as memoryblock) as boolean
    • method ReadRowMaskOnly(mem as memoryblock) as boolean
    • method ReadsRGBTag(byref file_srgb_intent as Integer) as boolean
    • method RowBytes as Integer
    • property AllowDamaged as Boolean
    • property BitDepth as Integer
    • property ChunkCacheMax as UInt32
    • property ChunkMallocMax as UInt64
    • property ColorType as Integer
    • property CompressionBufferSize as UInt64
    • property ExpandGrayToRGB as Boolean
    • property HasTransparency as Boolean
    • property Height as Integer
    • property InterlaceType as Integer
    • property Interlacing as Integer
    • property InvertAlpha as Boolean
    • property Mask as Picture
    • property OriginalColorType as Integer
    • property Pict as Picture
    • property RGBToGray as Boolean
    • property RGBToGrayErrorAction as Integer
    • property RGBToGrayGreen as Double
    • property RGBToGrayRed as Double
    • property SourceData as String
    • property SourceFile as FolderItem
    • property SourcePath as String
    • property StripAlpha as Boolean
    • property SwapRB as Boolean
    • property UseFiller as Boolean
    • property UserHeightMaximum as UInt32
    • property UserWidthMaximum as UInt32
    • property Width as Integer
    • event Error(msg as string)
    • event Warning(msg as string)
  • class PNGWriterMBS
    • method CloseDestination
    • method Finish as string
    • method OpenWriteDestination(file as folderitem) as boolean
    • method OpenWriteDestination(Path as String) as boolean
    • shared method PNGLibVersion as string
    • method SetAlphaData(alphas() as Integer, colors() as color) as boolean
    • method SetAlphas as boolean
    • method SetEXIF(EXIFData as string) as boolean
    • method SetGamma(gamma as Double = 0.0) as boolean
    • method SetGrayPicture(pict as picture, mask as picture = nil) as boolean
    • method SetHeader(Interlace as boolean = false, Filter as Integer = -1, Compression as Integer = -1) as boolean
    • method SetICCProfile(name as string, CompressionType as Integer, Profile as string) as boolean
    • method SetPalette as boolean
    • method SetPaletteData(colors() as color) as boolean
    • method SetPalettePicture(pict as picture) as boolean
    • method SetResolution(ResolutionHorizontal as Integer, ResolutionVertical as Integer, Unit as Integer) as boolean
    • method SetRGBPicture(pict as picture, mask as picture = nil) as boolean
    • method SetRows(rows() as memoryblock) as boolean
    • method SetsRGB(intent as Integer) as boolean
    • method WriteEnd as boolean
    • method WriteInfo as boolean
    • method WriteRow(row as memoryblock)
    • method WriteRows as boolean
    • property bpc as Integer
    • property Height as Integer
    • property Rowbytes as Integer
    • property Type as Integer
    • property Width as Integer
    • event Error(msg as string)
    • event Warning(msg as string)
• Class Extensions
  • class FolderItem
    • method OpenAsPNGMBS(gamma as single = 0.0, AllowDamaged as Boolean = false) as PNGPictureMBS
    • method SaveAs8BitAlphaPNGMBS(pic as picture, colors() as color, alphas() as Integer, gamma as single = 0.0) as boolean
    • method SaveAs8BitAlphaPNGMBS(pic as picture, colors() as color, alphas() as Integer, gamma as single, Interlace as Boolean, FilterType as Integer) as boolean
    • method SaveAs8BitPNGMBS(pic as picture, colors() as color, gamma as single = 0.0) as boolean
    • method SaveAs8BitPNGMBS(pic as picture, colors() as color, gamma as single, Interlace as Boolean, FilterType as Integer) as boolean
    • method SaveAsPNGMBS(pic as picture, gamma as single = 0.0) as boolean
    • method SaveAsPNGMBS(pic as picture, gamma as single, Interlace as Boolean, FilterType as Integer) as boolean
    • method SaveAsPNGMBS(pic as picture, mask as picture, gamma as single = 0.0) as boolean
    • method SaveAsPNGMBS(pic as picture, mask as picture, gamma as single, Interlace as Boolean, FilterType as Integer) as boolean

Release notes

• Version 20.4
  • Fixed bug in error handling for ApplyOptions in PNGReaderMBS class.
• Version 20.2
  • Added CompressionBufferSize, UserWidthMaximum, UserHeightMaximum, ChunkCacheMax, and ChunkMallocMax properties to PNGReaderMBS class.
  • Deprecated OpenSpecialData method in PNGReaderMBS class.
• Version 19.5
  • Added ExpandGrayToRGB and StripAlpha properties to PNGReaderMBS class.
  • Added InvertAlpha property to PNGReaderMBS class.
  • Added OriginalColorType property to PNGReaderMBS class.
  • Added path variant for OpenFile method and new SourcePath property to PNGReaderMBS class.
  • Added path variants for OpenWriteDestination method to PNGWriterMBS class.
  • Added RGBToGray, RGBToGrayErrorAction, RGBToGrayGreen, RGBToGrayRed properties to PNGReaderMBS class.
  • Added UseFiller property to PNGReaderMBS class.
• Version 19.2
  • Change PNGReaderMBS to skip unknown blocks in PNG file.
• Version 19.0
  • Added ReadEXIF for PNGReaderMBS class.
  • Added SetEXIF for PNGWriterMBS class.
• Version 18.4
  • Fixed problem with PNGStringToPictureMBS returning white picture in Xojo 2018r1.

The items on this page are in the following plugins: MBS Images Plugin.