Method ErrorCheckEndFrameFinalizeErrorTooltip

include/imgui/imgui.cpp:11113–11162

Display an error tooltip when same ID as HoveredId was submitted multiple times. See code in ItemHoverable() for an explanation of why we associate this error to HoveredId + code drawing of rectangles over individual items instances.

// Display an error tooltip when same ID as HoveredId was submitted multiple times.
// See code in ItemHoverable() for an explanation of why we associate this error to HoveredId + code drawing of rectangles over individual items instances.
void ImGui::ErrorCheckEndFrameFinalizeErrorTooltip()
{
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
    ImGuiContext& g = *GImGui;
    if (g.DebugDrawIdConflictsId != 0 && g.IO.KeyCtrl == false)
        g.DebugDrawIdConflictsCount = g.HoveredIdPreviousFrameItemCount;
    if (g.DebugDrawIdConflictsId != 0 && g.DebugItemPickerActive == false && BeginErrorTooltip())
    {
        Text("Programmer error: %d visible items with conflicting ID!", g.DebugDrawIdConflictsCount);
        BulletText("Code should use PushID()/PopID() in loops, or append \"##xx\" to same-label identifiers!");
        BulletText("Empty label e.g. Button(\"\") == same ID as parent widget/node. Use Button(\"##xx\") instead!");
        //BulletText("Code intending to use duplicate ID may use e.g. PushItemFlag(ImGuiItemFlags_AllowDuplicateId, true); ... PopItemFlag()"); // Not making this too visible for fear of it being abused.
        BulletText("Set io.ConfigDebugHighlightIdConflicts=false to disable this warning in non-programmers builds.");
        Separator();
        if (g.IO.ConfigDebugHighlightIdConflictsShowItemPicker)
        {
            Text("(Hold Ctrl to: use ");
            SameLine(0.0f, 0.0f);
            if (SmallButton("Item Picker"))
                DebugStartItemPicker();
            SameLine(0.0f, 0.0f);
            Text(" to break in item call-stack, or ");
        }
        else
        {
            Text("(Hold Ctrl to: ");
        }
        SameLine(0.0f, 0.0f);
        TextLinkOpenURL("read FAQ \"About ID Stack System\"", "https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#qa-usage");
        SameLine(0.0f, 0.0f);
        Text(")");
        EndErrorTooltip();
    }

    if (g.ErrorCountCurrentFrame > 0 && BeginErrorTooltip()) // Amend at end of frame
    {
        Separator();
        Text("(Hold Ctrl to: ");
        SameLine(0.0f, 0.0f);
        if (SmallButton("Enable Asserts"))
            g.IO.ConfigErrorRecoveryEnableAssert = true;
        //SameLine();
        //if (SmallButton("Hide Error Tooltips"))
        //    g.IO.ConfigErrorRecoveryEnableTooltip = false; // Too dangerous
        SameLine(0, 0);
        Text(")");
        EndErrorTooltip();
    }
#endif
}

// Pseudo-tooltip. Follow mouse until Ctrl is held. When Ctrl is held we lock position, allowing to click it.
bool ImGui::BeginErrorTooltip()