[fpc-devel] Does 3.2.3 still support Windows XP ?

[Martin Frb]

On 06/08/2026 15:31, Tomas Hajny via fpc-devel wrote:
> On 2026-08-06 14:48, Martin Frb via fpc-devel wrote:
>> Still checking what causes it, but somewhere since February something 
>> changed.
>>
>> The IDE fails with cant find entry point for gettickcount64
>>
>>
>> there is a commit
>> SHA-1: bbc7d0c96bde01a599b15c46c32521d1801fabd5, Branch RevNo: 38799
>> *  * vista+ gettickcount64
>> git-svn-id: trunk at 24397 -
>>
>> Could that?
>
> In order to reply your question from the subject - our readme.txt says 
> so as far as I can see. ;-)
>
> From a technical point of view - yes, GetTickCount64 is indeed not 
> supported before MS Windows Vista (thus not available in WinXP). While 
> this API should be preferred over GetTickCount whenever available, 
> providing a fallback for systems not supporting GetTickCount64 
> natively is obviously quite simple / easily doable (load 
> GetTickCount64 dynamically rather than statically at startup and 
> assign a local function falling back to GetTickCount to a 
> GetTickCount64 procedural variable in case the dynamic loading attempt 
> fails).

The older 3.2.3 must have had something that substituted the missing 
function.

If I did test correct then the problem is only half caused by that API 
addition.

If I replace all calls to GetTickCount64 with just GetTickCount (never 
mind any issues that this may hold), then the IDE starts.
The mere presence of the API line does not seem to be an issue, if it 
isn't used.

But, it the IDE code had GetTickCount64 for a long time, and it did 
start with fpc 3.2.3 before.
So there must have been a method that was called instead?