use platform::*;
use windows_dll::dll;

#[test]
fn function_exists() {
    #[dll("user32.dll")]
    extern "system" {
        #[allow(non_snake_case)]
        fn SetWindowCompositionAttribute(
            h_wnd: HWND,
            data: *mut WINDOWCOMPOSITIONATTRIBDATA,
        ) -> BOOL;
    }

    dbg!(unsafe { SetWindowCompositionAttribute::exists() });
}

#[test]
fn function_exists_module() {
    mod user32 {
        use super::*;
        #[dll("user32.dll")]
        extern "system" {
            #[allow(non_snake_case)]
            pub fn SetWindowCompositionAttribute(
                h_wnd: HWND,
                data: *mut WINDOWCOMPOSITIONATTRIBDATA,
            ) -> BOOL;
        }
    }
    use user32::SetWindowCompositionAttribute;

    dbg!(unsafe { SetWindowCompositionAttribute::exists() });
}

#[allow(non_snake_case)]
type WINDOWCOMPOSITIONATTRIB = u32;

#[allow(non_snake_case)]
#[repr(C)]
pub struct WINDOWCOMPOSITIONATTRIBDATA {
    Attrib: WINDOWCOMPOSITIONATTRIB,
    pvData: PVOID,
    cbData: SIZE_T,
}

#[cfg(feature = "winapi")]
mod platform {
    pub use winapi::shared::{basetsd::SIZE_T, minwindef::BOOL, ntdef::PVOID, windef::HWND};
}

#[cfg(feature = "windows")]
mod platform {
    use core::ffi::c_void;
    pub use windows::Win32::Foundation::{BOOL, HWND};

    pub type PVOID = *mut c_void;
    #[allow(non_camel_case_types)]
    pub type SIZE_T = usize;
}