TestEngine: Added hook to notify test engine of a removed imgui context.

imgui.cpp

@@ -3916,6 +3916,11 @@ void ImGui::Shutdown(ImGuiContext* context)
         SetCurrentContext(backup_context);
     }
 
+    // Notify hooked test engine, if any
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    ImGuiTestEngineHook_Shutdown(context);
+#endif
+
     // Clear everything else
     for (int i = 0; i < g.Windows.Size; i++)
         IM_DELETE(g.Windows[i]);

imgui.h

@@ -60,7 +60,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.77"
-#define IMGUI_VERSION_NUM           17700
+#define IMGUI_VERSION_NUM           17701
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 
 // Define attributes of all API symbols declarations (e.g. for DLL under Windows)

imgui_internal.h

@@ -2028,8 +2028,8 @@ IMGUI_API void              ImFontAtlasBuildMultiplyRectAlpha8(const unsigned ch
 // [SECTION] Test Engine Hooks (imgui_test_engine)
 //-----------------------------------------------------------------------------
 
-//#define IMGUI_ENABLE_TEST_ENGINE
 #ifdef IMGUI_ENABLE_TEST_ENGINE
+extern void                 ImGuiTestEngineHook_Shutdown(ImGuiContext* ctx);
 extern void                 ImGuiTestEngineHook_PreNewFrame(ImGuiContext* ctx);
 extern void                 ImGuiTestEngineHook_PostNewFrame(ImGuiContext* ctx);
 extern void                 ImGuiTestEngineHook_ItemAdd(ImGuiContext* ctx, const ImRect& bb, ImGuiID id);