Added assert to catch users using Begin/End without a first NewFrame

10 years ago · 9b5493d1d9
1 changed files with 1 additions and 0 deletions
--- a/imgui.cpp
+++ b/imgui.cpp
@ -2038,6 +2038,7 @@ bool ImGui::Begin(const char* name, bool* open, ImVec2 size, float fill_alpha, I
 {
    ImGuiState& g = GImGui;
    const ImGuiStyle& style = g.Style;
+    IM_ASSERT(g.Initialized);                       // Forgot to call ImGui::NewFrame()

    ImGuiWindow* window = FindWindow(name);
    if (!window)