## Summary of the Pull Request
I believe this fixes#3861 but I honestly don't know how to test that part of the code. Just from reading the issue description that @dhowett-msft provided.
## References
## PR Checklist
* [x] Closes#3861
* [x] I work here
* [ ] Are there tests for this?
* [n/a] Requires documentation to be updated
## Validation Steps Performed
Really none, I just built it and :fingers_crossed:
(cherry picked from commit fcd210ce00)
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
Every lambda capture in `Tab` and `TerminalPage` has been changed from capturing raw `this` to `std::weak_ptr<Tab>` or `winrt::weak_ref<TerminalPage>`. Lambda bodies have been changed to check the weak reference before use.
Capturing raw `this` in `Tab`'s [title change event handler](https://github.com/microsoft/terminal/blob/master/src/cascadia/TerminalApp/Tab.cpp#L299) was the root cause of #3776, and is fixed in this PR among other instance of raw `this` capture.
The lambda fixes to `TerminalPage` are unrelated to the core issue addressed in the PR checklist. Because I was already editing `TerminalPage`, figured I'd do a [weak_ref pass](https://github.com/microsoft/terminal/issues/3776#issuecomment-560575575).
<!-- Other than the issue solved, is this relevant to any other issues/existing PRs? -->
<!-- Please review the items on the PR checklist before submitting-->
* [x] Closes#3776, potentially #2248, likely closes others
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [x] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #3776
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
`Tab` now inherits from `enable_shared_from_this`, which enable accessing `Tab` objects as `std::weak_ptr<Tab>` objects. All instances of lambdas capturing `this` now capture `std::weak_ptr<Tab>` instead. `TerminalPage` is a WinRT type which supports `winrt::weak_ref<TerminalPage>`. All previous instance of `TerminalPage` lambdas capturing `this` has been replaced to capture `winrt::weak_ref<TerminalPage>`. These weak pointers/references can only be created after object construction necessitating for `Tab` a new function called after construction to bind lambdas.
Any anomalous crash related to the following functionality during closing a tab or WT may be fixed by this PR:
- Tab icon updating
- Tab text updating
- Tab dragging
- Clicking new tab button
- Changing active pane
- Closing an active tab
- Clicking on a tab
- Creating the new tab flyout menu
Sorry about all the commits. Will fix my fork after this PR! 😅
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
Attempted to repro the steps indicated in issue #3776 with the new changes and failed. When before the changes, the issue could consistently be reproed.
(cherry picked from commit 7b9728b4a9)
Fixed bug where suppressApplicationTitle didn't suppress initial title from application
Also fixes the Azure Cloud Shell issue.
(cherry picked from commit 54966c374f)
Updates MUX to the latest pre-release version. This prerelease has a fix for a certain `E_LAYOUTCYCLE` bug in the TabView that was causing an untold number of crashes for us.
Thanks again @teaP!
* [x] Closes#3303
* [x] Closes#2277
* [x] I work here
* [n/a] Tests added/passed
* [n/a] Requires documentation to be updated
(cherry picked from commit 2f0abc202a)
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
Replaced a `gsl::narrow` call to `gsl::narrow_cast` call. The `gsl::narrow` call used to throw when the user had custom display scaling due to a bad comparison between floating point values.
<!-- Other than the issue solved, is this relevant to any other issues/existing PRs? -->
## References
Possible other [startup crashes](https://github.com/microsoft/terminal/issues/3749#issuecomment-559900267). I'll update this as they're found.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [x] Closes#3749, likely #3747
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [x] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #3749
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
It's a one line fix. If you want more context, here's the [full description](https://github.com/microsoft/terminal/issues/3749#issuecomment-559911062) of the problem.
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Set my machine to a custom scaling and opened a fixed build of the WT. My WT started up without crashing and continued to operate without issues (including maximizing, minimizing, and fullscreen toggle).
(cherry picked from commit b17038b98a)
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
This PR updates the TitleBar buttons to be more consistent with other Windows apps.
Current buttons are a tiny bit smaller as compared to Chrome/Credge/Settings:
<!-- Other than the issue solved, is this relevant to any other issues/existing PRs? -->
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [X] CLA signed
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [ ] I've discussed this with core contributors already.
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
This PR changes the PointerHover Background of the close button on the TitleBar to match other Windows apps, from "#ff0000" to "#e81123". Also, the button width has been changed to 46 to be the same as other windows apps.
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
------------------------------------------
* Fix Close Button Color
Changed the color of the Close Button on mouse hover from Red to "#e81123" which is the color used by other uwp apps.
* Updated Button Width
Changed the button width to be consistent with other uwp apps.
(cherry picked from commit 7719f8f1b7)
This location and name is practically mandated by PackageES. Sorry ☹️.
This will ensure that all artifacts that we produce are versioned
properly:
| thing | version (ex.) |
|---------|-----------------|
| dll/exe | 0.7.1911.22009 |
| nupkg | 0.7.191122009 |
| appx | 0.7.3269.0 |
For reference, here's the version format:
### EXE, DLL, .NET Assembly
0.7.1911.22009
^ ^ ^ ^ ^ ^
| | | | | `-Build # on that date
| | | | `-Day
| | | `-Month
| | `-Year
| `-Minor
`-Major
### NuGet Package
0.7.191122009
^ ^ ^ ^ ^ ^
| | | | | `-Build # on that date
| | | | `-Day
| | | `-Month
| | `-Year
| `-Minor
`-Major
### AppX Package
0.7.03269.0
^ ^ ^ ^^ ^
| | | || `-Contractually always zero (a waste)
| | | |`-Build # on that date
| | | `-Number of days in [base year]
| | `-Number of years since [base year]
| `-Minor
`-Major
[base year] = $(XesBaseYearForStoreVersion)
It is expected that the base year is changed every time the version
number is changed.
## Summary of the Pull Request
This PR implements resetFontSize keybindings, with default keybindings `ctrl+0`.
## PR Checklist
* [x] Closes#3319
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
## Validation Steps Performed
Tested manually.
-----------------------------------------
* Add resetFontSize keybindings (#3319)
* update doc files
* Refactor AdjustFontSize & ResetFontSize to use _SetFontSize (#3319)
* Ran clang-format on TermControl
* Fix function usage change
TerminalControl doesn't use any of the built in text input and edit
controls provided by XAML for text input, which means TermianlControl
needs to communicate with the Text Services Framework (TSF) in order to
provide Input Method Editor (IME) support. Just like the rest of
Terminal we get to take advantage of newer APIs (Windows.UI.Text.Core)
namespace to provide support vs. the old TSF 1.0.
Windows.UI.Text.Core handles communication between a text edit control
and the text services primarily through a CoreTextEditContext object.
This change introduces a new UserControl TSFInputControl which is a
custom EditControl similar to the CustomEditControl sample[1].
TSFInputControl is similar (overlay with IME text) to how old console
(conimeinfo) handled IME.
# Details
TSFInputControl is a Windows.UI.Xaml.Controls.UserControl
TSFInputControl contains a Canvas control for absolution positioning a
TextBlock control within its containing control (TerminalControl).
The TextBlock control is used for displaying candidate text from the
IME. When the user makes a choice in the IME the TextBlock is cleared
and the text is written to the Terminal buffer like normal text.
TSFInputControl creates an instance of the CoreTextEditContext and
attaches appropriate event handlers to CoreTextEditContext in order to
interact with the IME.
A good write-up on how to interact with CoreTextEditContext can be found
here[2].
## Text Updates
Text updates from the IME come in on the TextUpdating event handler,
text updates are stored in an internal buffer (_inputBuffer).
## Completed Text
Once a user selects a text in the IME, the CompositionCompleted handler
is invoked. The input buffer (_inputBuffer) is written to the Terminal
buffer, _inputBuffer is cleared and Canvas and TextBlock controls are
hidden until the user starts a composition session again.
## Positioning
Telling the IME where to properly position itself was the hardest part
of this change. The IME expects to know it's location in screen
coordinates as supposed to client coordinates. This is pretty easy if
you are a pure UWP, but since we are hosted inside a XAMLIsland the
client to screen coordinate translation is a little harder.
### Calculating Screen Coordinates
1. Obtaining the Window position in Screen coordinates.
2. Determining the Client coordinate of the cursor.
3. Converting the Client coordinate of the cursor to Screen coordinates.
4. Offsetting the X and Y coordinate of the cursor by the position of
the TerminalControl within the window (tabs if present, margins, etc..).
5. Applying any scale factor of the display.
Once we have the right position in screen coordinates, this is supplied
in the LayoutBounds of the CoreTextLayoutRequestedEventArgs which lets
the IME know where to position itself on the Screen.
## Font Information/Cursor/Writing to Terminal
3 events were added to the TSFInputControl to create a loosely-coupled
implementation between the TerminalControl and the TSFInputControl.
These events are used for obtaining Font information from the
TerminalControl, getting the Cursor position and writing to the terminal
buffer.
## Known Issues
- Width of TextBlock is hardcoded to 200 pixels and most likely should
adjust to the available width of the current input line on the console
(#3640)
- Entering text in the middle of an existing set of text has TextBlock
render under existing text. Current Console behavior here isn't good
experience either (writes over text)
- Text input at edges of window is clipped versus wrapping around to
next line. This isn't any worse than the original command line, but
Terminal should be better (#3657)
## Future Considerations
Ideally, we'd be able to interact with the console buffer directly and
replace characters as the user types.
## Validation
General steps to try functionality
- Open Console
- Switch to Simplified Chinese (Shortcut: Windows+Spacebar)
- Switch to Chinese mode on language bar
Scenarios validated:
- As user types unformatted candidates appear on command line and IME
renders in correct position under unformatted characters.
- User can dismiss IME and text doesn't appear on command line
- Switch back to English mode, functions like normal
- New tab has proper behavior
- Switching between tabs has proper behavior
- Switching away from Terminal Window with IME present causes IME to
disappear
[1]: https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/CustomEditControl
[2]: https://docs.microsoft.com/en-us/windows/uwp/design/input/custom-text-inputCloses#459Closes#2213Closes#3641
* first take at suppressApplicationTitle rewrite
* Rebased tab title fixes
* updated settings doc
* incomplete - not suppressing where application title is changing
* added original startingTitle functionality back
* moved suppressApplicationTitle to ICoreSettings
* suppression is working, but tab navigation overrides it
* suppression works, but not with panes
* it works!
* code cleanup
* added suppressApplicationTitle to JSON schema
* more code cleanup
* changed starting title from wstring_view to wstring
* Formatting fix
## Summary of the Pull Request
With #3391, I almost certainly regressed the ability for the new tab dropdown to display the keybindings for each profile. This adds them back.
## PR Checklist
* [x] Closes#3603
* [x] I work here
* [ ] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
Now, we can lookup keybindings not only for `ShortcutAction`s, but also `ActionAndArgs`s, so we can look up the binding for an action with a particular set of arguments.
---------------------------------------------
* fixes#3603 by searching for ActionAndArgs too
* Apply suggestions from code review
Co-Authored-By: Carlos Zamora <carlos.zamora@microsoft.com>
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
Fixes#3604 where Increase/Decrease font size bindings were not working.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [x] Closes#3604
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Increase and decrease font size works once again!
-------------------------------------
* adding FromJson to AdjustFontSizeArgs
* made a legacy function that just allows you to do 1/-1 delta for adjusting font size
* adding test case
* removing extra quotes
* comments lmao
* FORMATTING WHY
## Summary of the Pull Request
Unties the concept of "focused control" from "active control".
Previously, we were exclusively using the "Focused" state of `TermControl`s to determine which one was active. This was fraught with gotchas - if anything else became focused, then suddenly there was _no_ pane focused in the Tab. This happened especially frequently if the user clicked on a tab to focus the window. Furthermore, in experimental branches with more UI added to the Terminal (such as [dev/migrie/f/2046-command-palette](https://github.com/microsoft/terminal/tree/dev/migrie/f/2046-command-palette)), when these UIs were added to the Terminal, they'd take focus, which again meant that there was no focused pane.
This fixes these issue by having each Tab manually track which Pane is active in that tab. The Tab is now the arbiter of who in the tree is "active". Panes still track this state, for them to be able to MoveFocus appropriately.
It also contains a related fix to prevent the tab separator from stealing focus from the TermControl. This required us to set the color of the un-focused Pane border to some color other that Transparent, so I went with the TabViewBackground. Panes now look like the following:
## References
See also: #2046
## PR Checklist
* [x] Closes#1205
* [x] Closes#522
* [x] Closes#999
* [x] I work here
* [😢] Tests added/passed
* [n/a] Requires documentation to be updated
## Validation Steps Performed
Tested manually opening panes, closing panes, clicking around panes, the whole dance.
---------------------------------------------------
* this is janky but is close for some reason?
* This is _almost_ right to solve #1205
If I want to double up and also fix#522 (which I do), then I need to also
* when a tab GetsFocus, send the focus instead to the Pane
* When the border is clicked on, focus that pane's control
And like a lot of cleanup, because this is horrifying
* hey this autorevoker is really nice
* Encapsulate Pane::pfnGotFocus
* Propogate the events back up on close
* Encapsulate Tab::pfnFocusChanged, and clean up TerminalPage a bit
* Mostly just code cleanup, commenting
* This works to hittest on the borders
If the border is `Transparent`, then it can't hittest for Tapped events, and it'll fall through (to someone)
THis at least works, but looks garish
* Match the pane border to the TabViewHeader
* Fix a bit of dead code and a bad copy-pasta
* This _works_ to use a winrt event, but it's dirty
* Clean up everything from the winrt::event debacle.
* This is dead code that shouldn't have been there
* Turn Tab's callback into a winrt::event as well
This commit renames the functions in conpty.lib to Conpty* so that they
can be explicitly linked and introduces a header so they can be located.
It also updates the DEF for conpty.dll to reexport them with their
original names.
The crux of the issue here is that TerminalConnection is consuming the
_import_ symbols for the *PseudoConsole family of APIs, which simply
cannot be supplanted by a static library.
Avenues explored: * Exporting __imp_x from the static library to get all
up in kernel32's business. * Using /ALTERNATENAME:__imp_X=StaticX. It
turns out ALTERNATENAME is only consulted when the symbol isn't found
through traditional means.
This, renaming them, is the straightest path forward.
Fixes#3553.
* Adds HasBackgroundImage() and GetExpandedBackgroundImagePath() to
Profiles.cpp/h
* Fills Terminal Settings with expanded path, rather than path value
from profiles.json
* Adds simple regression tests to detect and fail if this fix is
circumvented in the future
Fixes#2922
* Make search a shared component for conhost and terminal
* Remove inclusion of deprecated interface file
* Code review changes, remove text buffer modification in Terminal
* remove unreferenced objects to fix build errors
* Fix test failure, guarantee uiaData object is correctly initialized in Search
* minor comment typo fix and format fix
* minor PR comments change
* ColorSeclection directly throw and return
* remove coordAnchor initialization
* minor method signature change
## Summary of the Pull Request
Enables the user to provide arbitrary argument values to shortcut actions through a new `args` member of keybindings. For some keybindings, like `NewTabWithProfile<N>`, we previously needed 9 different `ShortcutAction`s, one for each value of `Index`. If a user wanted to have a `NewTabWithProfile11` keybinding, that was simply impossible. Now that the args are in their own separate json object, each binding can accept any number of arbitrary argument values.
So instead of:
```json
{ "command": "newTab", "keys": ["ctrl+shift+t"] },
{ "command": "newTabProfile0", "keys": ["ctrl+shift+1"] },
{ "command": "newTabProfile1", "keys": ["ctrl+shift+2"] },
{ "command": "newTabProfile2", "keys": ["ctrl+shift+3"] },
{ "command": "newTabProfile3", "keys": ["ctrl+shift+4"] },
```
We can now use:
```json
{ "command": "newTab", "keys": ["ctrl+shift+t"] },
{ "command": { "action": "newTab", "index": 0 }, "keys": ["ctrl+shift+1"] },
{ "command": { "action": "newTab", "index": 1 }, "keys": ["ctrl+shift+2"] },
{ "command": { "action": "newTab", "index": 2 }, "keys": ["ctrl+shift+3"] },
```
Initially, this does seem more verbose. However, for cases where there are multiple args, or there's a large range of values for the args, this will quickly become a more powerful system of expressing keybindings.
The "legacy" keybindings are _left in_ in this PR. They have helper methods to generate appropriate `IActionArgs` values. Prior to releasing 1.0, I think we should remove them, if only to remove some code bloat.
## References
See [the spec](https://github.com/microsoft/terminal/blob/master/doc/specs/%231142%20-%20Keybinding%20Arguments.md) for more details.
This is part two of the implementation, part one was #2446
## PR Checklist
* [x] Closes#1142
* [x] I work here
* [x] Tests added/passed
* [x] Schema updated
## Validation Steps Performed
* Ran Tests
* Removed the legacy keybindings from the `defaults.json`, everything still works
* Tried leaving the legacy keybingings in my `profiles.json`, everything still works.
-------------------------------------------------
* this is a start, but there's a weird linker bug if I take the SetKeybinding(ShortcutAction, KeyChord) implementation out, which I don't totally understand
* a good old-fashioned clean will fix that right up
* all these things work
* hey this actually _functionally_ works
* Mostly cleanup and completion of implementation
* Hey I bet we could just make NewTab the handler for NewTabWithProfile
* Start writing tests for Keybinding args
* Add tests
* Revert a bad sln change, and clean out dead code
* Change to include "command" as a single object
This is a change to make @dhowett-msft happy. Changes the args to be a part
of the "command" object, as opposed to an object on their own.
EX:
```jsonc
// Old style
{ "command": "switchToTab0", "keys": ["ctrl+1"] },
{ "command": { "action": "switchToTab", "index": 0 }, "keys": ["ctrl+alt+1"] },
// new style
{ "command": "switchToTab0", "keys": ["ctrl+1"] },
{ "command": "switchToTab", "args": { "index": 0 } "keys": ["ctrl+alt+1"] },
```
* schemas are hard yo
* Fix the build?
* wonder why my -Wall settings are different than CI...
* this makes me hate things
* Comments from PR
* Add a `Direction::None`
* LOAD BEARING
* add some GH ids to TODOs
* add a comment
* PR nits from carlos
* Make ConPTY build as both LIB and DLL.
* Update TerminalConnection reference to LIB version (because Terminal builds both UWP and Centennial, requiring different CRTs each).
* DLL is now available (and against desktop CRT) to be PInvokable from C# for WPF terminal.
Note, DLL MUST BUILD PRECOMP to get the magic pragma linking information to the Desktop CRT.
* don't audit PTY lib. I can't do safe things because the safe things we use don't fit back inside kernelbase.dll.
Closes#3563.
## Summary of the Pull Request
RTF data is now copied to the clipboard. Tested by copy pasting text from terminal to WordPad.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [x] Closes#2487
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [x] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #2487
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
Mostly similar to PR #1224. Added a new static method `GenRTF` in `TextBuffer` that is responsible
for generating the RTF representation of a given text. The generated RTF is added to the `DataPackage` that is ultimately passed to the clipboard.
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Validated by copy pasting text from the terminal to WordPad. Validated with different colors to make sure that is working. (MS Word seems to prefer HTML data from the clipboard instead of RTF.)
<hr>
* Copy RTF data to the clipboard
* Added comment explaining various parts of the header
* Fixed static code analysis issues and added noexcept to GenRTF()
* Removed noexcept
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
This introduces a setting to both Profiles and ColorSchemes called <code>selectionBackground</code> that allows you to change the selection background color to what's specified. If <code>selectionBackground</code> isn't set in either the profile or color scheme, it'll default to what it was before - white.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [x] Closes#3326
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [x] Tests added/passed
* [x] Requires documentation to be updated
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
- Added selectionBackground to existing profile and colorscheme tests.
- Verified that the color does change to what I expect it to be when I add "selectionBackground" to either/both a profile and a color scheme.
<hr>
* adding selectionBackground to ColorScheme and TerminalSettings
* Changing PaintSelection inside the renderers to take a SelectionBackground COLORREF
* changes to conhost and terminal renderdata, and to terminal settings and core
* IT WORKS
* modification of unit tests, json schemas, reordering of functions
* more movement
* changed a couple of unit tests to add selectionBackground, added the setting to schemas, also added the optional setting to profiles
* default selection background should be slightly offwhite like the default foreground is
* reverting changes to .sln
* cleaning up
* adding comment
* oops
* added clangformat to my vs hehe
* moving selectionBackground to IControlSettings and removing from ICoreSettings
* trying to figure out why the WHOLE FILE LOOKS LIKE ITS CHANGED
* here it goes again
* pls
* adding default foreground as the default for selection background in dx
## Summary of the Pull Request
This PR potentially fixes#3101.
## PR Checklist
* [x] Closes#3101.
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx
## Detailed Description of the Pull Request / Additional comments
This PR fixes#3101 by setting flag 0 in `ToUnicodeEx()` even though the documentation says "If bit 0 is set, a menu is active.". I'm not 100% sure why it works, but it definitely does in this case.
I thought that bit 2, which claims that "keyboard state is not changed" would be sufficient to prevent this from happening, but it seems that's not the case.
I believe this PR should be verified by a developer at Microsoft who's familiar with the internal workings of `ToUnicodeEx()`.
We need this function (or something similar) to translate Alt+Key combinations to proper unicode.
But at the same time it should not send us any additional IBM-style Alt Codes to our character handler if that translation fails (and `ToUnicodeEx()` returns 0).
## Validation Steps Performed
See #3101 for more information. I ensured that Alt+Arrow-Key combinations do not print ◘☻♠♦ anymore.
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
Another tiny performance fix.
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
Correct me if I'm wrong, It doesn't really make sense to update scroll status faster than frame rate limit.
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
<hr>
* Throttle scroll position update
* Review
