Method AddKeyAnalogEvent

src/third-party/imgui/imgui.cpp:1262–1302

Queue a new key down/up event. - ImGuiKey key: Translated key (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character) - bool down: Is the key down? use false to signify a key release. - float analog_value: 0.0f..1.0f

// - bool down:          Is the key down? use false to signify a key release.
// - float analog_value: 0.0f..1.0f
void ImGuiIO::AddKeyAnalogEvent(ImGuiKey key, bool down, float analog_value)
{
    //if (e->Down) { IMGUI_DEBUG_LOG("AddKeyEvent() Key='%s' %d, NativeKeycode = %d, NativeScancode = %d\n", ImGui::GetKeyName(e->Key), e->Down, e->NativeKeycode, e->NativeScancode); }
    if (key == ImGuiKey_None)
        return;
    ImGuiContext& g = *GImGui;
    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
    IM_ASSERT(ImGui::IsNamedKey(key)); // Backend needs to pass a valid ImGuiKey_ constant. 0..511 values are legacy native key codes which are not accepted by this API.

    // Verify that backend isn't mixing up using new io.AddKeyEvent() api and old io.KeysDown[] + io.KeyMap[] data.
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
    IM_ASSERT((BackendUsingLegacyKeyArrays == -1 || BackendUsingLegacyKeyArrays == 0) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
    if (BackendUsingLegacyKeyArrays == -1)
        for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
            IM_ASSERT(KeyMap[n] == -1 && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
    BackendUsingLegacyKeyArrays = 0;
#endif
    if (ImGui::IsGamepadKey(key))
        BackendUsingLegacyNavInputArray = false;

    // Partial filter of duplicates (not strictly needed, but makes data neater in particular for key mods and gamepad values which are most commonly spmamed)
    ImGuiKeyData* key_data = ImGui::GetKeyData(key);
    if (key_data->Down == down && key_data->AnalogValue == analog_value)
    {
        bool found = false;
        for (int n = g.InputEventsQueue.Size - 1; n >= 0 && !found; n--)
            if (g.InputEventsQueue[n].Type == ImGuiInputEventType_Key && g.InputEventsQueue[n].Key.Key == key)
                found = true;
        if (!found)
            return;
    }

    // Add event
    ImGuiInputEvent e;
    e.Type = ImGuiInputEventType_Key;
    e.Source = ImGui::IsGamepadKey(key) ? ImGuiInputSource_Gamepad : ImGuiInputSource_Keyboard;
    e.Key.Key = key;
    e.Key.Down = down;
    e.Key.AnalogValue = analog_value;
    g.InputEventsQueue.push_back(e);
}

void ImGuiIO::AddKeyEvent(ImGuiKey key, bool down)
{