Function CCODE::GdiAlphaBlend

pub unsafe extern "C" fn GdiAlphaBlend(
    hdcDest: HDC, 
    xoriginDest: c_int, 
    yoriginDest: c_int, 
    wDest: c_int, 
    hDest: c_int, 
    hdcSrc: HDC, 
    xoriginSrc: c_int, 
    yoriginSrc: c_int, 
    wSrc: c_int, 
    hSrc: c_int, 
    ftn: BLENDFUNCTION
) -> BOOL