Function DemoWindowInputs

imgui_tiny_app/imgui/imgui_demo.cpp:7910–8216

//-----------------------------------------------------------------------------

static void DemoWindowInputs()
{
    if (ImGui::CollapsingHeader("Inputs & Focus"))
    {
        ImGuiIO& io = ImGui::GetIO();

        // Display inputs submitted to ImGuiIO
        ImGui::SetNextItemOpen(true, ImGuiCond_Once);
        bool inputs_opened = ImGui::TreeNode("Inputs");
        ImGui::SameLine();
        HelpMarker(
            "This is a simplified view. See more detailed input state:\n"
            "- in 'Tools->Metrics/Debugger->Inputs'.\n"
            "- in 'Tools->Debug Log->IO'.");
        if (inputs_opened)
        {
            IMGUI_DEMO_MARKER("Inputs & Focus/Inputs");
            if (ImGui::IsMousePosValid())
                ImGui::Text("Mouse pos: (%g, %g)", io.MousePos.x, io.MousePos.y);
            else
                ImGui::Text("Mouse pos: <INVALID>");
            ImGui::Text("Mouse delta: (%g, %g)", io.MouseDelta.x, io.MouseDelta.y);
            ImGui::Text("Mouse down:");
            for (int i = 0; i < IM_COUNTOF(io.MouseDown); i++) if (ImGui::IsMouseDown(i)) { ImGui::SameLine(); ImGui::Text("b%d (%.02f secs)", i, io.MouseDownDuration[i]); }
            ImGui::Text("Mouse wheel: %.1f", io.MouseWheel);
            ImGui::Text("Mouse clicked count:");
            for (int i = 0; i < IM_COUNTOF(io.MouseDown); i++) if (io.MouseClickedCount[i] > 0) { ImGui::SameLine(); ImGui::Text("b%d: %d", i, io.MouseClickedCount[i]); }

            // We iterate both legacy native range and named ImGuiKey ranges. This is a little unusual/odd but this allows
            // displaying the data for old/new backends.
            // User code should never have to go through such hoops!
            // You can generally iterate between ImGuiKey_NamedKey_BEGIN and ImGuiKey_NamedKey_END.
            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
            ImGuiKey start_key = ImGuiKey_NamedKey_BEGIN;
            ImGui::Text("Keys down:");         for (ImGuiKey key = start_key; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !ImGui::IsKeyDown(key)) continue; ImGui::SameLine(); ImGui::Text((key < ImGuiKey_NamedKey_BEGIN) ? "\"%s\"" : "\"%s\" %d", ImGui::GetKeyName(key), key); }
            ImGui::Text("Keys mods: %s%s%s%s", io.KeyCtrl ? "CTRL " : "", io.KeyShift ? "SHIFT " : "", io.KeyAlt ? "ALT " : "", io.KeySuper ? "SUPER " : "");
            ImGui::Text("Chars queue:");       for (int i = 0; i < io.InputQueueCharacters.Size; i++) { ImWchar c = io.InputQueueCharacters[i]; ImGui::SameLine();  ImGui::Text("\'%c\' (0x%04X)", (c > ' ' && c <= 255) ? (char)c : '?', c); } // FIXME: We should convert 'c' to UTF-8 here but the functions are not public.

            ImGui::TreePop();
        }

        // Display ImGuiIO output flags
        ImGui::SetNextItemOpen(true, ImGuiCond_Once);
        bool outputs_opened = ImGui::TreeNode("Outputs");
        ImGui::SameLine();
        HelpMarker(
            "The value of io.WantCaptureMouse and io.WantCaptureKeyboard are normally set by Dear ImGui "
            "to instruct your application of how to route inputs. Typically, when a value is true, it means "
            "Dear ImGui wants the corresponding inputs and we expect the underlying application to ignore them.\n\n"
            "The most typical case is: when hovering a window, Dear ImGui set io.WantCaptureMouse to true, "
            "and underlying application should ignore mouse inputs (in practice there are many and more subtle "
            "rules leading to how those flags are set).");
        if (outputs_opened)
        {
            IMGUI_DEMO_MARKER("Inputs & Focus/Outputs");
            ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
            ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
            ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);