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MemoryblockBGRAtoPictureMBS(dest as picture, source as memoryblock, offset as Integer, width as Integer, height as Integer) as picture

Type Topic Plugin Version macOS Windows Linux iOS Targets
global method Graphics & Pictures MBS Picture Plugin 10.1 ✅ Yes ✅ Yes ✅ Yes ✅ Yes All
Copies image data from a memoryblock into a picture object.
Example 
// Create a picture with mask:
dim p as Picture = LogoMBS(200)
dim g as Graphics = p.mask.Graphics

g.ForeColor = &cFFFFFF
g.FillRect 0,0,g.Width,g.Height

g.ForeColor = &c000000
g.Filloval 0,0,g.Width,g.Height

// convert to memoryblock
dim m as new MemoryBlock(4 * p.Width * p.Height)

if p.CopyBGRAtoMemoryblockMBS(m, 0, p.Mask) then
  // convert back
  Backdrop = MemoryblockBGRAtoPictureMBS(nil, m, 0, p.Width, p.Height)
  
  break // look into memoryblock with debugger
end if

Returns nil on any error.
source should not be nil.
offset should be 0 or bigger and is the start position in the memoryblock.

The function will crash if the memoryblock is too small. Needs width*height*4 bytes in the memoryblock.

In the dest picture parameter you can provide a picture to draw in. If the picture is no big enough or nil, a new one is created.

Does not access the mask inside the image!
Data is copied from memory block to the new picture, not referenced.

See also:

MemoryblockBGRAtoPictureMBS(source as memoryblock, offset as Integer, width as Integer, height as Integer) as picture

Type Topic Plugin Version macOS Windows Linux iOS Targets
global method Graphics & Pictures MBS Picture Plugin 8.5 ✅ Yes ✅ Yes ✅ Yes ✅ Yes All
Copies image data from a memoryblock into a picture object.
Example 
// Create a picture with mask:
dim p as Picture = LogoMBS(200)
dim g as Graphics = p.mask.Graphics

g.ForeColor = &cFFFFFF
g.FillRect 0,0,g.Width,g.Height

g.ForeColor = &c000000
g.Filloval 0,0,g.Width,g.Height

// convert to memoryblock
dim m as new MemoryBlock(4 * p.Width * p.Height)

if p.CopyBGRAtoMemoryblockMBS(m, 0, p.Mask) then
  // convert back
  Backdrop = MemoryblockBGRAtoPictureMBS(m, 0, p.Width, p.Height)
  
  break // look into memoryblock with debugger
end if

Returns nil on any error.
source should not be nil.
offset should be 0 or bigger and is the start position in the memoryblock.

The function will crash if the memoryblock is too small. Needs width*height*4 bytes in the memoryblock.

Does not access the mask inside the image!
Data is copied from memory block to the new picture, not referenced.

See also:

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


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