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#![allow(non_camel_case_types, non_snake_case)]
use crate::co;
use crate::decl::*;
use crate::kernel::ffi_types::*;
use crate::ole::privs::*;
use crate::prelude::*;
use crate::vt::*;
/// [`IMFMediaEventGenerator`](crate::IMFMediaEventGenerator) virtual table.
#[repr(C)]
pub struct IMFMediaEventGeneratorVT {
pub IUnknownVT: IUnknownVT,
pub GetEvent: fn(COMPTR, u32, *mut COMPTR) -> HRES,
pub BeginGetEvent: fn(COMPTR, COMPTR, COMPTR) -> HRES,
pub EndGetEvent: fn(COMPTR, COMPTR, *mut COMPTR) -> HRES,
pub QueueEvent: fn(COMPTR, u32, PCVOID, HRES, PCVOID) -> HRES,
}
com_interface! { IMFMediaEventGenerator: "2cd0bd52-bcd5-4b89-b62c-eadc0c031e7d";
/// [`IMFMediaEventGenerator`](https://learn.microsoft.com/en-us/windows/win32/api/mfobjects/nn-mfobjects-imfmediaeventgenerator)
/// COM interface over
/// [`IMFMediaEventGeneratorVT`](crate::vt::IMFMediaEventGeneratorVT).
///
/// Automatically calls
/// [`Release`](https://learn.microsoft.com/en-us/windows/win32/api/unknwn/nf-unknwn-iunknown-release)
/// when the object goes out of scope.
}
impl mf_IMFMediaEventGenerator for IMFMediaEventGenerator {}
/// This trait is enabled with the `mf` feature, and provides methods for
/// [`IMFMediaEventGenerator`](crate::IMFMediaEventGenerator).
///
/// Prefer importing this trait through the prelude:
///
/// ```no_run
/// use winsafe::prelude::*;
/// ```
pub trait mf_IMFMediaEventGenerator: ole_IUnknown {
/// [`IMFMediaEventGenerator::BeginGetEvent`](https://learn.microsoft.com/en-us/windows/win32/api/mfobjects/nf-mfobjects-imfmediaeventgenerator-begingetevent)
/// method.
fn BeginGetEvent(&self,
callback: &impl mf_IMFAsyncCallback,
state: Option<&impl ole_IUnknown>,
) -> HrResult<()>
{
ok_to_hrresult(
unsafe {
(vt::<IMFMediaEventGeneratorVT>(self).BeginGetEvent)(
self.ptr(),
callback.ptr(),
state.map_or(std::ptr::null_mut(), |s| s.ptr()),
)
},
)
}
/// [`IMFMediaEventGenerator::EndGetEvent`](https://learn.microsoft.com/en-us/windows/win32/api/mfobjects/nf-mfobjects-imfmediaeventgenerator-endgetevent)
/// method.
#[must_use]
fn EndGetEvent(&self,
result: &impl mf_IMFAsyncResult,
) -> HrResult<IMFMediaEvent>
{
let mut queried = unsafe { IMFMediaEvent::null() };
ok_to_hrresult(
unsafe {
(vt::<IMFMediaEventGeneratorVT>(self).EndGetEvent)(
self.ptr(),
result.ptr(),
queried.as_mut(),
)
},
).map(|_| queried)
}
/// [`IMFMediaEventGenerator::GetEvent`](https://learn.microsoft.com/en-us/windows/win32/api/mfobjects/nf-mfobjects-imfmediaeventgenerator-getevent)
/// method.
#[must_use]
fn GetEvent(&self,
flags: Option<co::MF_EVENT_FLAG>,
) -> HrResult<IMFMediaEvent>
{
let mut queried = unsafe { IMFMediaEvent::null() };
ok_to_hrresult(
unsafe {
(vt::<IMFMediaEventGeneratorVT>(self).GetEvent)(
self.ptr(),
flags.unwrap_or_default().raw(),
queried.as_mut(),
)
},
).map(|_| queried)
}
/// [`IMFMediaEventGenerator::QueueEvent`](https://learn.microsoft.com/en-us/windows/win32/api/mfobjects/nf-mfobjects-imfmediaeventgenerator-queueevent)
/// method.
fn QueueEvent(&self,
met: co::ME,
extended_type: &GUID,
status: co::HRESULT,
value: Option<&PROPVARIANT>,
) -> HrResult<()>
{
ok_to_hrresult(
unsafe {
(vt::<IMFMediaEventGeneratorVT>(self).QueueEvent)(
self.ptr(),
met.raw(),
extended_type as *const _ as _,
status.raw(),
value.map_or(std::ptr::null(), |v| v as *const _ as _),
)
},
)
}
}