# Windows APIs to Xojo data type conversion for APIs **URL:** \ **Category:** Windows\ **Created:** [January 22, 2017, 1:24am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641 "2017-01-22T01:24:38Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![anon20074439](https://forum.xojo.com/letter_avatar_proxy/v4/letter/a/ac8455/32.png) [@anon20074439](https://forum.xojo.com/u/anon20074439)\ **Post date:** [January 22, 2017, 1:24am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/1 "2017-01-22T01:24:38Z")
[http://blog](http://blog)./2017/01/22/windows-to-xojo-data-type-conversion/ I’ve just put this up on my blog for my own reference to assist me when tinkering with Windows APIs. There’s a very handy search on there that should narrow things down a bit to help you find what you’re looking for. Any gaps will be filled in over time, they are mainly pointers to structural definitions. Please post on this thread if you see something wrong, I’ll keep it up to date and correct. ---
**Author:** ![Michel\_Bujardet](https://forum.xojo.com/user_avatar/forum.xojo.com/michel_bujardet/32/252_2.png) [@Michel\_Bujardet](https://forum.xojo.com/u/Michel_Bujardet)\ **Post date:** [January 22, 2017, 2:42am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/2 "2017-01-22T02:42:40Z")
Great job. Thank you Julian 🙂 ---
**Author:** ![Milan\_Milovanovic](https://forum.xojo.com/letter_avatar_proxy/v4/letter/m/eada6e/32.png) [@Milan\_Milovanovic](https://forum.xojo.com/u/Milan_Milovanovic)\ **Post date:** [January 22, 2017, 5:32pm UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/3 "2017-01-22T17:32:25Z")
Thanks, extremely useful. ---
**Author:** ![anon20074439](https://forum.xojo.com/letter_avatar_proxy/v4/letter/a/ac8455/32.png) [@anon20074439](https://forum.xojo.com/u/anon20074439)\ **Post date:** [January 22, 2017, 9:59pm UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/4 "2017-01-22T21:59:33Z")
I’m glad you like it guys, it’s taken a while to put together but I have already used it to find and fix a few of my api problems already. I did a bit of housekeeping on it, updated a few things. It’s 99% complete now and should be a good reference for most calls. ---
**Author:** ![Geoff\_H1](https://forum.xojo.com/user_avatar/forum.xojo.com/geoff_h1/32/5987_2.png) [@Geoff\_H1](https://forum.xojo.com/u/Geoff_H1)\ **Post date:** [February 2, 2017, 3:39am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/5 "2017-02-02T03:39:52Z")
Thanks! Very cool! ---
**Author:** ![Dan\_Oja](https://forum.xojo.com/letter_avatar_proxy/v4/letter/d/54ee81/32.png) [@Dan\_Oja](https://forum.xojo.com/u/Dan_Oja)\ **Post date:** [February 2, 2017, 1:12pm UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/6 "2017-02-02T13:12:05Z")
Nice. Thank you for sharing! ---
**Author:** ![anon20074439](https://forum.xojo.com/letter_avatar_proxy/v4/letter/a/ac8455/32.png) [@anon20074439](https://forum.xojo.com/u/anon20074439)\ **Post date:** [March 19, 2017, 4:10am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/7 "2017-03-19T04:10:35Z")
Just updated the list a little, mainly changing any reference to Short to Int16. Sorry Short, we’ll miss you. ---
**Author:** ![anon20074439](https://forum.xojo.com/letter_avatar_proxy/v4/letter/a/ac8455/32.png) [@anon20074439](https://forum.xojo.com/u/anon20074439)\ **Post date:** [May 2, 2017, 10:36am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/8 "2017-05-02T10:36:38Z")
After talking with Eugene, I have clarified a few pieces of information on the list and filled in the last few blanks. ---
**Author:** ![anon20074439](https://forum.xojo.com/letter_avatar_proxy/v4/letter/a/ac8455/32.png) [@anon20074439](https://forum.xojo.com/u/anon20074439)\ **Post date:** [May 4, 2017, 10:28am UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/9 "2017-05-04T10:28:12Z")
Corrected references to: BOOL BOOLEAN LPBOOL PBOOL PBOOLEAN Forcing them to a Xojo Boolean was an oversight, there could be an edge case where these need to be Int32 or UInt8. ---
**Author:** ![system](https://forum.xojo.com/uploads/default/original/1X/455b4dcc0e61630e9f81940004ddffa49c432a46.png) [@system](https://forum.xojo.com/u/system)\ **Post date:** [October 29, 2020, 6:37pm UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/10 "2020-10-29T18:37:22Z")
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**Author:** ![Dana\_Brown](https://forum.xojo.com/user_avatar/forum.xojo.com/dana_brown/32/15210_2.png) [@Dana\_Brown](https://forum.xojo.com/u/Dana_Brown)\ **Post date:** [April 7, 2021, 8:07pm UTC](https://forum.xojo.com/t/windows-apis-to-xojo-data-type-conversion-for-apis/35641/11 "2021-04-07T20:07:18Z")