Method GetIDFromPos

imgui_tiny_app/imgui/imgui.cpp:9823–9829

This is only used in rare/specific situations to manufacture an ID out of nowhere. FIXME: Consider instead storing last non-zero ID + count of successive zero-ID, and combine those?

// This is only used in rare/specific situations to manufacture an ID out of nowhere.
// FIXME: Consider instead storing last non-zero ID + count of successive zero-ID, and combine those?
ImGuiID ImGuiWindow::GetIDFromPos(const ImVec2& p_abs)
{
    ImGuiID seed = IDStack.back();
    ImVec2 p_rel = ImGui::WindowPosAbsToRel(this, p_abs);
    ImGuiID id = ImHashData(&p_rel, sizeof(p_rel), seed);
    return id;
}

// "
ImGuiID ImGuiWindow::GetIDFromRectangle(const ImRect& r_abs)