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The gap appears on the right of the child GUI window, when scrollbar is set to be always shown #1249

Velofag opened this issue Sep 10, 2017 · 6 comments


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Velofag commented Sep 10, 2017


ConEmu build: 170807 x64 (previous versions have this bug too)
OS version: Windows 7 x64
Used shell version: any GUI child window

Problem description

If in Appearance settings the option to always show scrollbar is set, the following bug appears: when opening new tab with GUI window inside, there is a gap on the right. The width of the gap seems equal to the width of the scrollbar. After resizing ConEmu window or switching tabs, the gap disappears.

This problem doesn't exist if scrollbar is always hidden or set to auto show on mouse over (like it is set in default ConEmu configuration).

The bug can be reproduced with multiple different programs (tested: putty.exe, notepad.exe, speedcrunch.exe) so it is not a bug of child GUI window.

Steps to reproduce

  1. Create task for a GUI window (e.g. putty.exe, notepad.exe, etc).
  2. Change settings in Main >Appearance > Scrollbar to "Show".
  3. Open the task with a GUI window.

Actual results

The child window don't fill ConEmu window completely. There is the gap on the right side. Please see attached screenshots.

Expected results

There should be no gap. The child window should populate all available space.

Additional files

Bug screenshots:

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Velofag commented Sep 11, 2017

Thank you, @Maximus5. The bug is fixed now.

@Velofag Velofag closed this as completed Sep 11, 2017
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Velofag commented Sep 11, 2017

Upd: I decided to test if Notepad++ could be opened in ConEmu and found that described bug still appears if the child window is notepad++.exe . It may be that Notepad++ shows it's window in some different way than other applications. I can be wrong, but I think Notepad++ opens some hidden splashscreen-like window before opening main window.

Putty, Windows Notepad and SpeedCrunch open correctly now.

@Velofag Velofag reopened this Sep 11, 2017
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I am having the same issue.


ConEmu build: 180626 x64
OS version: Windows 10 x64 (1803)

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@alexdevero Please read what is this issue about. ChildGui
And report your desired behavior to node.js authors.

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@Maximus5 Please explain what has node.js do with this issue? The line break is defined by the width of the ConEmu window and rendered also by ConEmu.

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The line break is defined by the width of the ConEmu window and rendered also by ConEmu.

Definitely not. ConEmu is terminal, it shows what your node.js prints, and it's node.js choice when to do line break.
That is NOT a gap defined by scrollbar
The reported bug (this issue) for ChildGui was fixed year ago.
You problem is related to node.js (configuration or anything) and is offtopic here.

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