ImGuiNodeEditor fix

[philippeflorent]

Hi,

I have patched that old ImGuiNodeEditor (nice) project, but there is one line of code that causes issue, maybe you can help me out

I try to replace missing KeysDown

for (int n = 0; n < IM_ARRAYSIZE(io.KeysDown); n++)
            io.KeysDown[n] = false;

But AddKeyEvent gives me crap as it triggers an assertion fail here

void ImGuiIO::AddKeyAnalogEvent(ImGuiKey key, bool down, float analog_value)
{
    //if (e->Down) { IMGUI_DEBUG_LOG_IO("AddKeyEvent() Key='%s' %d, NativeKeycode = %d, NativeScancode = %d\n", ImGui::GetKeyName(e->Key), e->Down, e->NativeKeycode, e->NativeScancode); }
    IM_ASSERT(Ctx != NULL);
    if (key == ImGuiKey_None || !AppAcceptingEvents)
        return;
    ImGuiContext& g = *Ctx;
    IM_ASSERT(ImGui::IsNamedKeyOrMod(key)); <<<<<<<<<<<<< here

This is the code I try to update

for people interested in the code : ImGuiNodeEditor\examples\application\source\imgui_impl_win32.cpp line 353

case WM_KILLFOCUS:
        /*for (int n = 0; n < IM_ARRAYSIZE(io.KeysDown); n++)
            io.KeysDown[n] = false;*/

         ImGuiIO& io = ImGui::GetIO();
        // Reset all keys to not pressed
        for (int key = 0; key < ImGuiKey_COUNT; ++key)
            io.AddKeyEvent((ImGuiKey)key, false); <<<<<<<<<<<<<<< culprit

        // Reset all mouse buttons to not pressed
        for (int btn = 0; btn < IM_ARRAYSIZE(io.MouseDown); ++btn)
            io.AddMouseButtonEvent(btn, false);
            break;

Thanks for helping me out on this one