Re: [ft-devel] FreeType and WinAPI (Re: Freetype-devel Digest, Vol 145, Issue 1)

[Руслан Юсупов]

Thanks for your responses. I changed the source code based on your wishes

2 февр. 2017 г. 10:33 пользователь "Vincent Torri" <address@hidden> написал:

On Thu, Feb 2, 2017 at 12:05 AM, Hin-Tak Leung
<address@hidden> wrote:
> I
>  tried cross-compiling it with both the 32-bit and 64-bit mingw
> toolchains, and running the results under 32-bit and 64 bit wine.
>
>  - with the 64-bit toolchain (and only with the 64-bit toolchain), there
>  is an error:
>
> FTWinDemo.cpp: In function 'bool AssignWindow(AppInfo*)':
> FTWinDemo.cpp:471:57: error: cast from 'AppInfo* {aka _AppInfo*}' to
> 'LONG {aka long int}' loses precision [-fpermissive]
>      SetWindowLongPtr( app->window, GWLP_USERDATA, (LONG)app );
>                                                       ^~~

contrary to UNIX, on Windows, a LONG is 32 bits size long, so you
should use instead ULONG_PTR or (uintptr_t to be cross platform)

Vincent Torri

> When running under either 32-bit or 64-bit wine, there are a couple of
> issues:
>
> - Verdana.ttf is not shipped with wine, nor you should assume
> "c:/windows/fonts/Verdana.ttf" exist. It might be best to just bundle
> one of the smaller free fonts for demonstration, like liberation?
>
> - I got a pop-up error message box saying "Not set LCD filter: 7 " . 7
> means "unimplemented feature", I looked it up. Maybe you can actually
> use a more user-friendly error strings from fterrdef.h  than the numeral
>  7 ? That was against freetype 2.6.5 as shipped by fedora. I think LCD
> filter is a recent feature and depending on build options, etc? I see
> you are not using any special options, so it is maybe fedora shipping
> freetype which hasn't got it enabled. Best not to depend on it.
>
> - the same with 'cannot open resource" for error 1, for not finding
> Verdana . "Font not load: 1" isn't helpful.
>
> - after dismissing the pop-up box, the main window remain blank, until I
>  minimize/maximize it. You may be missing a paint-on-? event somewhere?
> Or perhaps choosing background/forground color?
>
> Anyway, well-done!
>
>

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