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BinaryFile.ReadContainer
Read some data and interpret them as container.
| Component | Version | macOS | Windows | Linux | Server | FileMaker iOS SDK |
| BinaryFile | 7.3 | Yes | Yes | Yes | Yes | Yes |
Parameters
| Parameter | Description | Example |
|---|---|---|
| BinaryFileRef | The reference number for the open file. | $FH |
| ByteCount | The number of Bytes to read. | 1000 |
| Filename | File name to use for container value. This is used to detect type of container. |
"test.pdf" |
Result
Returns value or error.
Description
Read some data and interpret them as container.Depending on given file name, you get back a PDF, image, video or data container.
See also BinaryFile.WriteContainer for writing.
Examples
Read a JPEG:
Set Variable [ $fh ; Value: MBS( "BinaryFile.Open"; "/Users/cs/Desktop/test.jpg" ) ]
Set Variable [ $len ; Value: MBS("BinaryFile.Length"; $fh) ]
Set Variable [ $image ; Value: MBS( "BinaryFile.ReadContainer"; $fh; $len; "test.jpg" ) ]
Set Field [ test::ContainerField ; $image ]
Set Variable [ $r ; Value: MBS( "BinaryFile.Close"; $fh) ]
See also
Blog Entries
Created 12nd June 2017, last changed 12nd June 2017
BinaryFile.ReadByte - BinaryFile.ReadFloat
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