pub struct Event { /* private fields */ }
Implementations§
source§impl Event
impl Event
sourcepub fn new(flags: Event_CreateFlags) -> Result<Event>
pub fn new(flags: Event_CreateFlags) -> Result<Event>
§C++ default parameters
- flags: Event::CreateFlags::DEFAULT
sourcepub fn new_def() -> Result<Event>
pub fn new_def() -> Result<Event>
§Note
This alternative version of [new] function uses the following default values for its arguments:
- flags: Event::CreateFlags::DEFAULT
sourcepub fn elapsed_time(
start: &impl EventTraitConst,
end: &impl EventTraitConst
) -> Result<f32>
pub fn elapsed_time( start: &impl EventTraitConst, end: &impl EventTraitConst ) -> Result<f32>
computes the elapsed time between events
Trait Implementations§
source§impl Boxed for Event
impl Boxed for Event
source§unsafe fn from_raw(ptr: <Event as OpenCVFromExtern>::ExternReceive) -> Self
unsafe fn from_raw(ptr: <Event as OpenCVFromExtern>::ExternReceive) -> Self
Wrap the specified raw pointer Read more
source§fn into_raw(self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut
fn into_raw(self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut
Return the underlying raw pointer while consuming this wrapper. Read more
source§fn as_raw(&self) -> <Event as OpenCVTypeExternContainer>::ExternSend
fn as_raw(&self) -> <Event as OpenCVTypeExternContainer>::ExternSend
Return the underlying raw pointer. Read more
source§fn as_raw_mut(&mut self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut
fn as_raw_mut(&mut self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut
Return the underlying mutable raw pointer Read more
source§impl EventTrait for Event
impl EventTrait for Event
fn as_raw_mut_Event(&mut self) -> *mut c_void
source§fn wait_for_completion(&mut self) -> Result<()>
fn wait_for_completion(&mut self) -> Result<()>
waits for an event to complete
source§impl EventTraitConst for Event
impl EventTraitConst for Event
fn as_raw_Event(&self) -> *const c_void
source§fn query_if_complete(&self) -> Result<bool>
fn query_if_complete(&self) -> Result<bool>
queries an event’s status
impl Send for Event
Auto Trait Implementations§
impl Freeze for Event
impl RefUnwindSafe for Event
impl !Sync for Event
impl Unpin for Event
impl UnwindSafe for Event
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
source§unsafe fn modify_inplace<Res>(
&mut self,
f: impl FnOnce(&Mat, &mut Mat) -> Res
) -> Res
unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res ) -> Res
Helper function to call OpenCV functions that allow in-place modification of a
Mat
or another similar object. By passing
a mutable reference to the Mat
to this function your closure will get called with the read reference and a write references
to the same Mat
. This is of course unsafe as it breaks the Rust aliasing rules, but it might be useful for some performance
sensitive operations. One example of an OpenCV function that allows such in-place modification is imgproc::threshold
. Read more