# A question about imshow
**URL:** https://forum.opencv.org/t/a-question-about-imshow/11226
**Category:** C++
**Tags:** highgui
**Created:** [December 6, 2022, 10:21am UTC](https://forum.opencv.org/t/a-question-about-imshow/11226 "2022-12-06T10:21:39Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@yuanlu](https://forum.opencv.org/u/yuanlu)
#### Post date: [December 6, 2022, 10:21am UTC](https://forum.opencv.org/t/a-question-about-imshow/11226/1 "2022-12-06T10:21:39Z")
I’m using imshow to display the debug image, but it will get stuck in one place. I don’t know how to solve it.
```cpp
cv::imshow("view", img);
```
Stuck code file:
```auto
opencv-4.6.0\modules\highgui\src\window_w32.cpp
```
Line 1364
```cpp
MoveWindow(window.hwnd, rect.left, rect.top,
rect.right - rect.left,
rect.bottom - rect.top, TRUE);
```
---
### Author:  [@crackwitz](https://forum.opencv.org/u/crackwitz)
#### Post date: [December 6, 2022, 9:49pm UTC](https://forum.opencv.org/t/a-question-about-imshow/11226/2 "2022-12-06T21:49:30Z")
you are failing to call `waitKey()`
---
### Author:  [@yuanlu](https://forum.opencv.org/u/yuanlu)
#### Post date: [December 7, 2022, 1:13am UTC](https://forum.opencv.org/t/a-question-about-imshow/11226/3 "2022-12-07T01:13:06Z")
No, I called it at first, but actually I didn’t execute that line of statements.
Every time I pause the program, he will stop at that position.
