Type Definition makepad_glx_sys::PFNGLGETNAMEDFRAMEBUFFERPARAMETERFVAMDPROC

type PFNGLGETNAMEDFRAMEBUFFERPARAMETERFVAMDPROC = Option<unsafe extern "C" fn(framebuffer: GLuint, pname: GLenum, numsamples: GLuint, pixelindex: GLuint, size: GLsizei, values: *mut GLfloat)>;