Trait windows_helpers::core::CheckNullError

pub trait CheckNullError
where
    Self: Null + Sized,
{
    // Required method
    fn nonnull_or_e_handle(self) -> Result<Self>;
}

Required Methods

fn nonnull_or_e_handle(self) -> Result<Self>

Passes a non-null self through to an Ok value, or, in case of it being null, returns Err with HRESULT E_HANDLE.

To be used with functions like CreateBitmap() that return a handle type or null, not offering an error code via GetLastError().

Object Safety

This trait is not object safe.

Implementors

impl<T> CheckNullError for T

where T: Null,