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#![allow(non_camel_case_types, non_snake_case)]
use crate::decl::*;
use crate::dshow::iterators::*;
use crate::kernel::ffi_types::*;
use crate::ole::privs::*;
use crate::prelude::*;
use crate::vt::*;
/// [`IEnumMediaTypes`](crate::IEnumMediaTypes) virtual table.
#[repr(C)]
pub struct IEnumMediaTypesVT {
pub IUnknownVT: IUnknownVT,
pub Next: fn(COMPTR, u32, *mut PVOID, *mut u32) -> HRES,
pub Skip: fn(COMPTR, u32) -> HRES,
pub Reset: fn(COMPTR) -> HRES,
pub Clone: fn(COMPTR, *mut COMPTR) -> HRES,
}
com_interface! { IEnumMediaTypes: "89c31040-846b-11ce-97d3-00aa0055595a";
/// [`IEnumMediaTypes`](https://learn.microsoft.com/en-us/windows/win32/api/strmif/nn-strmif-ienummediatypes)
/// COM interface over [`IEnumMediaTypesVT`](crate::vt::IEnumMediaTypesVT).
///
/// Automatically calls
/// [`IUnknown::Release`](https://learn.microsoft.com/en-us/windows/win32/api/unknwn/nf-unknwn-iunknown-release)
/// when the object goes out of scope.
}
impl dshow_IEnumMediaTypes for IEnumMediaTypes {}
/// This trait is enabled with the `dshow` feature, and provides methods for
/// [`IEnumMediaTypes`](crate::IEnumMediaTypes).
///
/// Prefer importing this trait through the prelude:
///
/// ```no_run
/// use winsafe::prelude::*;
/// ```
pub trait dshow_IEnumMediaTypes: ole_IUnknown {
/// Returns an iterator over the [`AM_MEDIA_TYPE`](crate::AM_MEDIA_TYPE)
/// elements which calls
/// [`IEnumMediaTypes::next`](crate::prelude::dshow_IEnumMediaTypes::Next)
/// internally.
///
/// # Examples
///
/// ```no_run
/// use winsafe::{self as w, prelude::*};
///
/// let types: w::IEnumMediaTypes; // initialized somewhere
/// # let types = unsafe { w::IEnumMediaTypes::null() };
///
/// for amt in types.iter() {
/// let amt = amt?;
/// println!("{} {}",
/// amt.majortype.to_string(), amt.lSampleSize);
/// }
/// # w::HrResult::Ok(())
/// ```
#[must_use]
fn iter(&self,
) -> impl Iterator<Item = HrResult<&'_ AM_MEDIA_TYPE<'_>>> + '_
{
IenummediatypesIter::new(self)
}
/// [`IEnumMediaTypes::Next`](https://learn.microsoft.com/en-us/windows/win32/api/strmif/nf-strmif-ienummediatypes-next)
/// method.
///
/// Prefer using
/// [`IEnumMediaTypes::iter`](crate::prelude::dshow_IEnumMediaTypes::iter),
/// which is simpler.
#[must_use]
fn Next(&self, mt: &mut AM_MEDIA_TYPE) -> HrResult<bool> {
okfalse_to_hrresult(
unsafe {
(vt::<IEnumMediaTypesVT>(self).Next)(
self.ptr(),
1, // retrieve only 1
mt as *mut _ as _,
std::ptr::null_mut(),
)
},
)
}
fn_com_noparm! { Reset: IEnumMediaTypesVT;
/// [`IEnumMediaTypes::Reset`](https://learn.microsoft.com/en-us/windows/win32/api/strmif/nf-strmif-ienummediatypes-reset)
/// method.
}
/// [`IEnumMediaTypes::Skip`](https://learn.microsoft.com/en-us/windows/win32/api/strmif/nf-strmif-ienummediatypes-skip)
/// method.
fn Skip(&self, count: u32) -> HrResult<bool> {
okfalse_to_hrresult(
unsafe { (vt::<IEnumMediaTypesVT>(self).Skip)(self.ptr(), count) },
)
}
}