Platforms to show: All Mac Windows Linux Cross-Platform

PictureWriterMBS class

dim p as PictureWriterMBS
dim m as MemoryBlock
dim r,g,b,rRow,gRow,bRow,h1,w1,x,y,bpp as Integer

// Create a new picture writer
p=NewPictureWriterMBS(512,512)

h1=p.Height-1
w1=p.Width-1

bpp=p.BytesPerPixel
rRow=p.RedOffset
gRow=p.GreenOffset
bRow=p.BlueOffset
// in each row the red, blue and green channels have different offsets.
// but offsets are platform dependend

for y=0 to h1
  // Get data in memory. This Memoryblock has a size property of 0!
  m=p.Data(y)
  r=rRow
  g=gRow
  b=bRow
  
  for x=0 to w1
    
    m.UInt8Value(r)=x\2
    m.UInt8Value(g)=y\2
    m.UInt8Value(b)=x*y\2
    
    r=r+bpp
    g=g+bpp
    b=b+bpp
  next
  
next

// Use Render to make a picture object
dim pic as Picture = p.Render
Backdrop = pic

• 12 properties
  • property BlueOffset as Integer
  • property BytesPerPixel as Integer
  • property Data as Memoryblock
  • property DataCopy as Memoryblock
  • property DataPtr as Integer
  • property GreenOffset as Integer
  • property HasAlphaChannel as Boolean
  • property Height as Integer
  • property Picture as Picture
  • property RedOffset as Integer
  • property RowBytes as Integer
  • property Width as Integer
• 2 methods
  • method Data(Row as Integer) as MemoryBlock
  • method Render as picture

This class has no sub classes.

Some useful global functions for this class:

• NewPictureWriterMBS(pic as picture, width as Integer, height as Integer) as PictureWriterMBS
• NewPictureWriterMBS(width as Integer, height as Integer, AlphaChannel as boolean = false) as PictureWriterMBS

Some examples using this class:

• /Picture/PictureWriter Test

Blog Entries

• MBS Xojo / Real Studio Plugins, version 15.0fc1
• MBS Xojo / Real Studio Plugins, version 14.2pr12
• MBS REALbasic Plugins Version 10.4 release notes
• MBS REALbasic Plugins, version 10.4pr8
• MBS REALbasic plug-in 9.6

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

PictureSepiaMBS   -   PKeyMBS