| Description |
The Read method tries to read Count bytes from the current Memory Stream position into the target Bytes array, starting at TargetStartIndex.
The actual count of bytes written to the array is returned.
The Memory stream position is updated accordingly.
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| | Notes | Warning : an exception is thrown if the array does not have capacity for the next block of bytes - even if that number of bytes may not be returned.
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| Microsoft MSDN Links |
System.IO
System.IO.MemoryStream
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| A simple example |
program Project1;
{$APPTYPE CONSOLE}
uses
System.IO;
var
Memory : System.IO.MemoryStream;
ByteArray : Array of Byte;
Index : Integer;
begin
// Create our Memory Stream
Memory := System.IO.MemoryStream.Create;
// Write to the stream
Memory.WriteByte(1);
Memory.WriteByte(2);
Memory.WriteByte(3);
Memory.WriteByte(4);
Memory.WriteByte(5);
Memory.WriteByte(6);
Memory.WriteByte(7);
Memory.WriteByte(8);
Memory.WriteByte(9);
// Move to the start of the stream
Memory.Seek(0, SeekOrigin.Begin);
// Declare our array to hold the returned data
SetLength(ByteArray, 12);
// Get the stream contents 3 characters at a time into our array
Index := 0;
while Memory.Read(ByteArray, Index, 3) > 0 do
Index := Index + 3;
// Display our array contents
for Index := 0 to Length(ByteArray)-1 do
Console.WriteLine(ByteArray[Index].ToString);
// Close the memory stream
Memory.Close;
Console.Readline;
end.
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