Method ErrorRecoveryStoreState

imgui_tiny_app/imgui/imgui.cpp:11629–11643

Save current stack sizes. Called e.g. by NewFrame() and by Begin() but may be called for manual recovery.

// Save current stack sizes. Called e.g. by NewFrame() and by Begin() but may be called for manual recovery.
void ImGui::ErrorRecoveryStoreState(ImGuiErrorRecoveryState* state_out)
{
    ImGuiContext& g = *GImGui;
    state_out->SizeOfWindowStack = (short)g.CurrentWindowStack.Size;
    state_out->SizeOfIDStack = (short)g.CurrentWindow->IDStack.Size;
    state_out->SizeOfTreeStack = (short)g.CurrentWindow->DC.TreeDepth; // NOT g.TreeNodeStack.Size which is a partial stack!
    state_out->SizeOfColorStack = (short)g.ColorStack.Size;
    state_out->SizeOfStyleVarStack = (short)g.StyleVarStack.Size;
    state_out->SizeOfFontStack = (short)g.FontStack.Size;
    state_out->SizeOfFocusScopeStack = (short)g.FocusScopeStack.Size;
    state_out->SizeOfGroupStack = (short)g.GroupStack.Size;
    state_out->SizeOfItemFlagsStack = (short)g.ItemFlagsStack.Size;
    state_out->SizeOfBeginPopupStack = (short)g.BeginPopupStack.Size;
    state_out->SizeOfDisabledStack = (short)g.DisabledStackSize;
}

// Chosen name "Try to recover" over e.g. "Restore" to suggest this is not a 100% guaranteed recovery.
// Called by e.g. EndFrame() but may be called for manual recovery.