CGBitmapContextCreateAdaptive

objc2_core_graphics

Function CGBitmapContextCreateAdaptive 

Source 
pub unsafe extern "C-unwind" fn CGBitmapContextCreateAdaptive(
    width: usize,
    height: usize,
    auxiliary_info: Option<&CFDictionary>,
    on_resolve: Option<&DynBlock<dyn Fn(NonNull<CGContentInfo>, NonNull<CGBitmapParameters>) -> bool>>,
    on_allocate: Option<&DynBlock<dyn Fn(NonNull<CGContentInfo>, NonNull<CGBitmapParameters>) -> *mut CGRenderingBufferProvider>>,
    on_free: Option<&DynBlock<dyn Fn(NonNull<CGRenderingBufferProvider>, NonNull<CGContentInfo>, NonNull<CGBitmapParameters>)>>,
    on_error: Option<&DynBlock<dyn Fn(NonNull<CFError>, NonNull<CGContentInfo>, NonNull<CGBitmapParameters>)>>,
) -> Option<CFRetained<CGContext>>
Available on crate features CGBitmapContext and CGColorSpace and CGContext and CGImage and CGRenderingBufferProvider and block2 only.
Expand description

§Safety

  • auxiliary_info generics must be of the correct type.
  • on_allocate block’s return must be a valid pointer or null.