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- <title>Blitz3D Docs</title>
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- <h1>WriteFloat (filehandle/stream, myFloat)</h1>
- <h1>Parameters</h1>
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- filehandle/stream = a valid variable set with the OpenFile, WriteFile command, or OpenTCPStream (v1.52+)
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- myFloat = a floating point variable
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- <h1>Description</h1>
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- Once you've opened a disk file (or stream) for writing, use this command to write a single floating point number to the file. Note, each value written uses 4 bytes.
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-
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- Streams can only be used in Blitz Basic v1.52 or greater.
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- <h1><a href=../2d_examples/WriteFloat.bb>Example</a></h1>
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- ; Reading and writing a file using ReadFloat and WriteFloat functions
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-
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- ; Initialise some variables for the example
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- Num1# = 10.5 ; store 10.5
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- Num2# = 365.25 ; store 365.25
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- Num3# = 32767.123 ; 32767.123 is the largest positive Short Integer Value in BlitzBasic )
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- Num4# = -32768.123 ; -32768.123 the largest negative Short Integer Value in BlitzBasic )
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-
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- ; Open a file to write to
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- fileout = WriteFile("mydata.dat")
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-
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- ; Write the information to the file
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- WriteFloat( fileout, Num1 )
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- WriteFloat( fileout, Num2 )
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- WriteFloat( fileout, Num3 )
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- WriteFloat( fileout, Num4 )
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-
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- ; Close the file
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- CloseFile( fileout )
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-
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- ; Open the file to Read
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- filein = ReadFile("mydata.dat")
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-
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- Read1# = ReadFloat( filein )
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- Read2# = ReadFloat( filein )
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- Read3# = ReadFloat( filein )
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- Read4# = ReadFloat( filein )
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-
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- ; Close the file once reading is finished
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- CloseFile( filein )
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-
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- Print "Floating Point Data Read From File - mydata.dat "
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- Print Read1
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- Print Read2
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- Print Read3
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- Print Read4
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-
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- WaitKey()
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- <a target=_top href=../index.htm>Index</a><br>
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- Click <a href=http://www.blitzbasic.co.nz/b3ddocs/command.php?name=WriteFloat&ref=comments target=_blank>here</a> to view the latest version of this page online</body>
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