concating 2 unicode strings - how to do that ?

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concating 2 unicode strings - how to do that ?

hello everyone,

I have 2 unicode strings which I like to concat.

everytime I try to concat using RtlAppendUnicodeStringToString it telling me "STATUS_BUFFER_TOO_SMALL", even though im increasing my destination unicodestring.length to big numbers.

what is the method to concat 2 unicode strings ? thanks

+2 A:

I believe you should change MaximumLength, not Length of the destination buffer.

Michael 2009-07-12 23:19:35

And of course, make sure MaximumLength is accurate by allocating enough memory.

Logan Capaldo 2009-07-12 23:31:44

In other words, two bytes per char, not one...

Steven Sudit 2009-07-12 23:39:37

UTF-16 can be 4 bytes per char.

Craig McQueen 2009-07-13 04:53:05

UTF-8 can also use up to 4 bytes per character. According to the online docs, "RtlAppendUnicodeStringToString copies bytes from the source up to the length of the destination buffer. "So your worst case is (<Destination max character count> + <Source max character count>) * 4.And have you allocated the memory already or just declared the size?

DaveE 2009-07-17 18:21:12