ImSpinner: loading spinners, dozens of them, to show that some work is going on.
Each spinner_* function draws one kind of spinner, at each frame.
Upstream repository · The book’s page
Modules¶
In imgui_bundle (from imgui_bundle import imspinner):
imspinner: 264 functions, 0 classes, 2 enums · the C++ view
Demos using it¶
The demos of the catalog that use it (the pictures link to their code and to the playground).

Health and wealth of nations, 1800 to 2100¶
Each bubble is a country: income per person across, life expectancy up, population as the size, world region as the color.
More
Press Play and two centuries go by. Click a bubble to pin it and draw its path through time; pick other indicators for the axes.
Uses: ImPlot, spinners

Power save when idle¶
When nothing happens, Hello ImGui lowers the frame rate to spare the CPU: after 3 seconds, the live plot and the spinner become choppy.
More
Content that changes on its own says so with hello_imgui.set_item_is_live(), and keeps the full speed while it is visible. The idling settings are global.
Uses: ImPlot, toggles, spinners

Knobs, toggles, spinners and more¶
Knobs, toggle switches, spinners, a command palette, a dock-like cool bar: widgets beyond Dear ImGui’s own.
More
They come from the libraries in the bundle: imgui-knobs, imgui_toggle, imspinner, imgui
Uses: knobs, toggles, spinners, cool bar, command palette, file dialogs