Method GetWindowResizeCornerID

src/imgui/imgui.cpp:6708–6715

0..3: corners (Lower-right, Lower-left, Unused, Unused)

// 0..3: corners (Lower-right, Lower-left, Unused, Unused)
ImGuiID ImGui::GetWindowResizeCornerID(ImGuiWindow* window, int n)
{
    IM_ASSERT(n >= 0 && n < 4);
    ImGuiID id = window->ID;
    id = ImHashStr("#RESIZE", 0, id);
    id = ImHashData(&n, sizeof(int), id);
    return id;
}

// Borders (Left, Right, Up, Down)
ImGuiID ImGui::GetWindowResizeBorderID(ImGuiWindow* window, ImGuiDir dir)