No scrolling region or selectable items inside Child about imgui HOT 3 CLOSED

You may use ImGuiChildFlags_Border to add a border to the child, and ImGuiChildFlags_FrameStyle to automatically use the colors of e.g. FrameBg instead of WindowBg, which is what ListBox do.

from imgui.

I feel super dumb. I called ImGui::Text() and wondering why it's not clickable.
But still trying to figure out why there isn't a scrollable region

from imgui.

added this code after the EndChild() (also the defination of HelpMaker as in the imgui_demo.cpp)and seems like it works

HelpMarker("Drag bottom border to resize. Double-click bottom border to auto-fit to vertical contents.");
ImGui::PushStyleColor(ImGuiCol_ChildBg, ImGui::GetStyleColorVec4(ImGuiCol_FrameBg));
if (ImGui::BeginChild("ResizableChild", ImVec2(-FLT_MIN, ImGui::GetTextLineHeightWithSpacing() * 8), ImGuiChildFlags_Border | ImGuiChildFlags_ResizeY))
    for (int n = 0; n < 10; n++)
        ImGui::Text("Line %04d", n);
ImGui::PopStyleColor();
ImGui::EndChild();

from imgui.