Re: TMerge very slow wit h UTF-16LE files

Kurt Pruenner wrote:
> Stefan Küng wrote:
>> I could improve the speed when drawing such long lines a lot, but even
>> with that improvement it's still slow (but it's now actually usable
>> again). The problem is that the lines in your test files are very long
>> and they have some non-standard chars, which makes the ExtTextOut() API
>> very slow. I've compared the drawing speed with two other text editors,
>> and they are not much faster than TMerge now.
>>
>> Improved the speed in r16577.
>
> Seems like ExtTextOut is horrible in almost any case:
>
> http://www.virtualdub.org/blog/pivot/entry.php?id=247
>

Yes I know, but we need to use ExtTextOut because it is able to use font
substitution for special chars. If we would use the DrawText() API
instead, it would be faster but special chars would show up as empty
rectangles.

Stefan

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