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    <p>The key portion of the code you linked to is below, where <code>IList</code> is a <code>TStrings</code> with the names of all the files to include in the animation.</p> <pre><code>for i := 0 to IList.Count - 1 do begin AssignFile(BFile, IList[i]); Reset(BFile, 1); Seek(BFile, m_bfh.bfOffBits); BlockRead(BFile, m_MemBits[0], m_Bih.biSizeImage); Seek(BFile, SizeOf(m_Bfh)); BlockRead(BFile, m_MemBitMapInfo[0], length(m_MemBitMapInfo)); CloseFile(BFile); if AVIStreamWrite(psCompressed, i, 1, @m_MemBits[0], m_Bih.biSizeImage, AVIIF_KEYFRAME, 0, 0) &lt;&gt; 0 then begin ShowMessage('Error during Write AVI File'); break; end; end; </code></pre> <p>It reads portions of the file from disk and writes them to the AVI stream. The important part is that it reads from the <em>files</em>. The in-memory representation of a <code>TBitmap</code> doesn't necessarily match with the representation of a file. However, it's easy to adapt the given code to temporarily store the bitmaps in a memory stream; the stream will match what the layout of the file would be. Suppose <code>IList</code> is now an array of <code>TBitmap</code>, as you suggested. Then we could use this:</p> <pre><code>var ms: TMemoryStream; ms := TMemoryStream.Create; try for i := 0 to Length(IList) - 1 do begin IList[i].SaveToStream(ms); ms.Position := m_bfh.bfOffBits; ms.ReadBuffer(m_MemBits[0], m_Bih.biSizeImage); ms.Position := SizeOf(m_Bfh); ms.ReadBuffer(m_MemBitMapInfo[0], Length(m_MemBitMapInfo)); ms.Clear; if AVIStreamWrite(psCompressed, i, 1, @m_MemBits[0], m_Bih.biSizeImage, AVIIF_KEYFRAME, 0, 0) &lt;&gt; 0 then begin ShowMessage('Error during Write AVI File'); break; end; end; finally ms.Free; end; </code></pre> <p>There's code earlier in your cited example that reads the first file in the list to populate the various records and size the arrays used here, but you should be able to make the same changes there as I have done to the code shown here.</p>
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    1. POHow to write avi file from sequence of TBitmaps?
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    1. USRob Kennedy
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    1. POHow to write avi file from sequence of TBitmaps?
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    1. COIt would be nice if you paste the whole example and change the necessary parts and definitely this will be my accepted answer.
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      1. USisa
    2. CO+1 great answer Rob, plenty to work with!
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      1. USArgalatyr
    3. CONo, Isa, I'd prefer not to. Which additional part of the code are you having trouble with? Do you recognize what changes I made in the above passages? Do you understand what they're for? Don't copy and paste code into your project if you don't understand what it does, because even though you didn't write it, since it's in your project you're going to have to support it eventually.
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      1. USRob Kennedy
 

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