Function SDL_ISPIXELFORMAT_ALPHA

pub const fn SDL_ISPIXELFORMAT_ALPHA(format: SDL_PixelFormat) -> bool

Available on crate feature dep_sdl3 only.

A macro to determine if an SDL_PixelFormat has an alpha channel.

Note that this macro double-evaluates its parameter, so do not use expressions with side-effects here.

Parameters

• format: an SDL_PixelFormat to check.

Return value

Returns true if the format has alpha, false otherwise.

Thread safety

It is safe to call this macro from any thread.

Availability

This macro is available since SDL 3.2.0.