CvWindowDisplayOverlay Method OpenCvSharp Class Library
Display text on the window's image as an overlay for delay milliseconds. This is not editing the image's data. The text is display on the top of the image.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax

public void DisplayOverlay(
	string text,
	int delayms
)

Parameters

text
Type: SystemString
Overlay text to write on the window’s image
delayms
Type: SystemInt32
Delay to display the overlay text. If this function is called before the previous overlay text time out, the timer is restarted and the text updated. . If this value is zero, the text never disapers.
See Also

Reference