[fltk.coredev] Re: fltk-1.4 build error in Fl_WinAPI_System_Driver.cxx with 32-bit mingw - Forums

On Thursday, 20 April 2023 at 13:25:48 UTC+1 imacarthur wrote:

We probably need to do something like (untested):

#ifdef _WIN32
# if !(defined _WIN32_IE) || (_WIN32_IE < 0x0500)
# undef _WIN32_IE
# define _WIN32_IE 0x0500
# endif /* _WIN32_WINNT checks */
#endif /* _WIN32 */

At the top of Fl_WinAPI_System_Driver.cxx as a workaround for this?

FWIW, I tried this tweak, and it seems to work.

That said, I do wonder if the issue is more to do with the mingw32 headers than with fltk per se.

I'm not convinced that enum definition should be guarded by the _WIN32_IE macro check at all... (And I do not have the "real" MS headers here to compare against, either.)

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