pub unsafe extern "system" fn WICGetMetadataContentSize(
guidContainerFormat: REFGUID,
pIWriter: *mut IWICMetadataWriter,
pcbSize: *mut ULARGE_INTEGER,
) -> HRESULT
pub unsafe extern "system" fn WICGetMetadataContentSize(
guidContainerFormat: REFGUID,
pIWriter: *mut IWICMetadataWriter,
pcbSize: *mut ULARGE_INTEGER,
) -> HRESULT