What writefile will return when hard disk is full.how to handle IO operation when hard drive is full?

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I am writing the data into the hard disk using WriteFile.My doubt is what will happen when hard drive is full.
How to handle IO operation when hard drive is full?
please help me and thanks

What I have tried:

I tried by storing the return value and checking the error code 0x27 or 0x70 but it always returns 0

Posted 9-May-16 20:26pm

shubham kesarwani

Updated 9-May-16 21:21pm

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OriginalGriff · Accepted Answer · 2016-05-09T20:40:00

Solution 1

The return value is 0 when an error has occurred: WriteFile function (Windows)[^] - you then use the GetLastError function (Windows)[^] to get the error code which will tell you why it happened.
I would expect that value to be 0x27 or 0x70, but not the return value from WriteFile.

Posted 9-May-16 20:40pm

OriginalGriff

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shubham kesarwani 10-May-16 4:44am

Thank you very much for your response.I got what i was doing wrong.

OriginalGriff 10-May-16 4:51am

You're welcome!

Richard MacCutchan · Accepted Answer · 2016-05-09T21:21:00

Solution 2

You should satart by studying the documentation for WriteFile function (Windows)[^].

Posted 9-May-16 21:21pm

Richard MacCutchan

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shubham kesarwani 10-May-16 4:45am

Thank you very much for your response. I will go through the document.