ui::testing::StartupMilestones¶
Header: winui/testing/PerfCounters.hpp.
How long the process took to reach each point on the way to its first frame, counted from process creation. Unset for a point not reached yet, and on a platform the library has no backend for.
| Field | Type | Default | |
|---|---|---|---|
first_window |
std::optional<Duration> |
The first native window was created. | |
first_frame |
std::optional<Duration> |
The first frame was presented. | |
first_idle |
std::optional<Duration> |
The message loop ran out of messages for the first time: the app is up and waiting. |