Method AddMouseButtonEvent

src/imgui/imgui.cpp:1823–1869

}

void ImGuiIO::AddMouseButtonEvent(int mouse_button, bool down)
{
    IM_ASSERT(Ctx != NULL);
    ImGuiContext& g = *Ctx;
    IM_ASSERT(mouse_button >= 0 && mouse_button < ImGuiMouseButton_COUNT);
    if (!AppAcceptingEvents)
        return;

    // On MacOS X: Convert Ctrl(Super)+Left click into Right-click: handle held button.
    if (ConfigMacOSXBehaviors && mouse_button == 0 && MouseCtrlLeftAsRightClick)
    {
        // Order of both statements matters: this event will still release mouse button 1
        mouse_button = 1;
        if (!down)
            MouseCtrlLeftAsRightClick = false;
    }

    // Filter duplicate
    const ImGuiInputEvent* latest_event = FindLatestInputEvent(&g, ImGuiInputEventType_MouseButton, (int)mouse_button);
    const bool latest_button_down = latest_event ? latest_event->MouseButton.Down : g.IO.MouseDown[mouse_button];
    if (latest_button_down == down)
        return;

    // On MacOS X: Convert Ctrl(Super)+Left click into Right-click.
    // - Note that this is actual physical Ctrl which is ImGuiMod_Super for us.
    // - At this point we want from !down to down, so this is handling the initial press.
    if (ConfigMacOSXBehaviors && mouse_button == 0 && down)
    {
        const ImGuiInputEvent* latest_super_event = FindLatestInputEvent(&g, ImGuiInputEventType_Key, (int)ImGuiMod_Super);
        if (latest_super_event ? latest_super_event->Key.Down : g.IO.KeySuper)
        {
            IMGUI_DEBUG_LOG_IO("[io] Super+Left Click aliased into Right Click\n");
            MouseCtrlLeftAsRightClick = true;
            AddMouseButtonEvent(1, true); // This is just quicker to write that passing through, as we need to filter duplicate again.
            return;
        }
    }

    ImGuiInputEvent e;
    e.Type = ImGuiInputEventType_MouseButton;
    e.Source = ImGuiInputSource_Mouse;
    e.EventId = g.InputEventsNextEventId++;
    e.MouseButton.Button = mouse_button;
    e.MouseButton.Down = down;
    e.MouseButton.MouseSource = g.InputEventsNextMouseSource;
    g.InputEventsQueue.push_back(e);
}

// Queue a mouse wheel event (some mouse/API may only have a Y component)
void ImGuiIO::AddMouseWheelEvent(float wheel_x, float wheel_y)