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JPEGExporterMBS class

Var g as FolderItem
Var ji as JPEGImporterMBS
Var je as JPEGExporterMBS
Var f as FolderItem
Var m as MemoryBlock

// this code copies a JPG: CMYK or RGB

// import it
g=SpecialFolder.Desktop.Child("PICT1533.JPG")
ji=new JPEGImporterMBS
ji.File=g
ji.AllowDamaged=true
ji.CMYK=true // if it is cmyk
if ji.InitJPEG then
  do
  loop until ji.LoopJPEG<>0
  ji.FinishJPEG
end if

// export it
f=SpecialFolder.Desktop.child("PICT1533 copy.JPG")
je=new JPEGExporterMBS
je.File=f
je.Quality=75

if ji.CMYK then
  m=ji.PictureData
  je.ExportCMYK m, ji.Width, ji.Height, ji.Width*4
else
  je.Picture=ji.Picture
  je.Export
end if

• 4 events
  • event Error(message as string, ErrorCode as Integer)
  • event GetRowData(index as Integer) as memoryblock
  • event Info(message as string, msglevel as Integer, ErrorCode as Integer)
  • event Warning(message as string, ErrorCode as Integer)
• 19 properties
  • property data as string
  • property DCTMethod as Integer
  • property ErrorCode as Integer
  • property ErrorMessage as string
  • property EXIFData as String
  • property file as folderitem
  • property HorizontalResolution as Integer
  • property OptimizeCoding as Boolean
  • property Path as String
  • property Picture as Picture
  • property ProfileData as String
  • property Progressive as Boolean
  • property Quality as Integer
  • property ResolutionUnit as Integer
  • property VerticalResolution as Integer
  • property WarningMessage as String
  • property XMPData as String
  • property YieldTicks as Integer
  • property Markers(Index as Integer) as string
• shared property API as String
• 6 methods
  • method Export
  • method ExportCMYK(data as memoryblock, width as UInt32, height as UInt32, rowbytes as UInt32)
  • method ExportGray
  • method ExportGray(data as memoryblock, width as UInt32, height as UInt32, rowbytes as UInt32)
  • method ExportRGB(data as memoryblock, width as UInt32, height as UInt32, rowbytes as UInt32)
  • method ExportRGBwithRowDataEvent(width as UInt32, height as UInt32, rowbytes as UInt32)
• 2 shared methods
  • shared method GetJPEGVersion as String
  • shared method SetAPI(API as Ptr = nil)
• 3 constants

Resolution Unit

This class has no sub classes.

Blog Entries

• MBS Xojo Plugins, version 21.1pr7
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• MBS Xojo Plugins, version 19.6pr4
• MBS Xojo Plugins, version 19.5pr7
• libjpeg-turbo for Xojo
• MBS Xojo Plugins, version 19.5pr6
• MBS Xojo Plugins, version 17.3pr5
• ICC color profiling
• Making use of the WebFileUploader
• MonkeyBread Software Releases the MBS REALbasic plug-ins 8.4

Release notes

• Version 21.1
  • Added ResolutionUnit constants to JPEGExporterMBS class.
• Version 20.0
  • Fixed crash with LibJPEGTurbo when using JPEGExporterMBS class with memory allocation and file handling.
  • Fixed problem with Progressive property in JPEGExporterMBS not always being used.
• Version 19.5
  • Added API functions to JPEGImporterMBS and JPEGExporterMBS class.
  • Added path property to JPEGExporterMBS and JPEGImporterMBS classes.
• Version 17.3
  • Added GetJPEGVersion to JPEGImporterMBS and JPEGExporterMBS classes.
• Version 17.1
  • Added JPEGExporterMBS.ExportGray with memoryblock for pixel data.

Some examples using this class:

• /Images/JPEG/JPEGToString example
• /Images/JPEG/PNG to JPEG with ICC Profile
• /Images/JPEG/Recompress JPEGs
• /Images/JPEG/Turbo JPEG Test
• /Images/LargePicture/CMYK/PictureMBS with CMYK
• /Images/LargePicture/JPEG Save
• /Images/LCMS2/Apple ICC Profile to JPEG File
• /Images/LCMS2/CMYK/CMYK Example
• /Images/LCMS2/Convert image to sRGB JPEG
• /MacCF/ColorSync/Colorsync Transform to CMYK

Some related classes:

• class JPEGImporterMBS
• class PictureMBS

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

JPEG2000MBS   -   JPEGImporterMarkerMBS