WindowWaitKeyEx Method

Waits for a pressed key. Similar to #waitKey, but returns full key code. Key code is implementation specific and depends on used backend: QT/GTK/Win32/etc

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0

Syntax

C++

Copy

public static int WaitKeyEx(
	int delay = 0
)

Public Shared Function WaitKeyEx ( 
	Optional delay As Integer = 0
) As Integer

public:
static int WaitKeyEx(
	int delay = 0
)

static member WaitKeyEx : 
        ?delay : int 
(* Defaults:
        let _delay = defaultArg delay 0
*)
-> int

Parameters

delay (Optional): Type: SystemInt32
Delay in milliseconds. 0 is the special value that means ”forever”

Return Value

Type: Int32
Returns the code of the pressed key or -1 if no key was pressed before the specified time had elapsed.

Reference

Window Class

OpenCvSharp Namespace

WindowAddLanguageSpecificTextSet("LST6C3EAD45_0?cpp=::|nu=.");WaitKeyEx Method

Parameters

Return Value

Reference

WindowWaitKeyEx Method