'''This page is maintained for historic purposes. The keyword is [[Keywords currently not supported by QB64|not supported in QB64]].'''

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[[ERDEV]] is an integer function that returns an error code from the last device to create an error.


*'''[[Keywords currently not supported by QB64|Not supported in QB64.]]'''
* The code is bit-encoded containing DOS error information, the first 8-bit (first byte) contain the DOS error code, while the second bit contains device specific information (bits 15, 14, 13, (12-4 always zero), 3, 2, 1 in that order of the device attribute word).

* [[ERDEV]] is set by the critical error handler (interrupt 24h) when DOS encounters a error that prevents it from continuing.


{{PageSeeAlso}}
[[ERDEV$]], [[ERROR]]




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