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Avoid timer ticks on frozen windows (#16587)
At the time of writing, closing the last tab of a window inexplicably doesn't lead to the destruction of the remaining TermControl instance. On top of that, on Win10 we don't destroy window threads due to bugs in DesktopWindowXamlSource. In other words, we leak TermControl instances. Additionally, the XAML timer class is "self-referential". Releasing all references to an instance will not stop the timer. Only calling Stop() explicitly will achieve that. The result is that the message loop of a frozen window thread has so far received 1-2 messages per second due to the blink timer not being stopped. This may have filled the message queue and lead to bugs as described in #16332 where keyboard input stopped working. (cherry picked from commit 521a300) Service-Card-Id: 91620224 Service-Version: 1.18
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Original file line number | Diff line number | Diff line change |
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#include "pch.h" | ||
#include "ColorHelper.h" | ||
#include <limits> | ||
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using namespace winrt::TerminalApp; | ||
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