Moved IMGUI_DISABLE_OBSOLETE_FUNCTIONS block lower in the imgui.h file so obsolete functions can use flags. Also sane to quarantine them outside of the respectable area.

imgui.cpp

@@ -5284,13 +5284,6 @@ void ImGui::SetNextWindowPos(const ImVec2& pos, ImGuiCond cond, const ImVec2& pi
     g.SetNextWindowPosCond = cond ? cond : ImGuiCond_Always;
 }
 
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-void ImGui::SetNextWindowPosCenter(ImGuiCond cond)
-{
-    SetNextWindowPos(GetIO().DisplaySize * 0.5f, cond, ImVec2(0.5f, 0.5f));
-}
-#endif
-
 void ImGui::SetNextWindowSize(const ImVec2& size, ImGuiCond cond)
 {
     ImGuiContext& g = *GImGui;

imgui.h

@@ -485,21 +485,6 @@ namespace ImGui
     IMGUI_API ImGuiContext* GetCurrentContext();
     IMGUI_API void          SetCurrentContext(ImGuiContext* ctx);
 
-    // Obsolete functions (Will be removed! Also see 'API BREAKING CHANGES' section in imgui.cpp)
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    bool                    Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
-    static inline void      AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); }     // OBSOLETE 1.52+
-    void                    SetNextWindowPosCenter(ImGuiCond cond = 0);                        // OBSOLETE 1.52+
-    static inline bool      IsItemHoveredRect() { return IsItemRectHovered(); }                // OBSOLETE 1.51+
-    static inline bool      IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // OBSOLETE 1.51+. This was partly broken. You probably wanted to use ImGui::GetIO().WantCaptureMouse instead.
-    static inline bool      IsMouseHoveringAnyWindow() { return IsAnyWindowHovered(); }        // OBSOLETE 1.51+
-    static inline bool      IsMouseHoveringWindow() { return IsWindowRectHovered(); }          // OBSOLETE 1.51+
-    static inline bool      CollapsingHeader(const char* label, const char* str_id, bool framed = true, bool default_open = false) { (void)str_id; (void)framed; ImGuiTreeNodeFlags default_open_flags = 1<<5; return CollapsingHeader(label, (default_open ? default_open_flags : 0)); } // OBSOLETE 1.49+
-    static inline ImFont*   GetWindowFont() { return GetFont(); }                              // OBSOLETE 1.48+
-    static inline float     GetWindowFontSize() { return GetFontSize(); }                      // OBSOLETE 1.48+
-    static inline void      SetScrollPosHere() { SetScrollHere(); }                            // OBSOLETE 1.42+
-#endif
-
 } // namespace ImGui
 
 // Flags for ImGui::Begin()
@@ -886,6 +871,27 @@ struct ImGuiIO
     IMGUI_API   ImGuiIO();
 };
 
+//-----------------------------------------------------------------------------
+// Obsolete functions (Will be removed! Also see 'API BREAKING CHANGES' section in imgui.cpp)
+//-----------------------------------------------------------------------------
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+namespace ImGui
+{
+    bool                    Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
+    static inline void      AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); }     // OBSOLETE 1.52+
+    static inline void      SetNextWindowPosCenter(ImGuiCond cond = 0) { SetNextWindowPos(ImVec2(GetIO().DisplaySize.x * 0.5f, GetIO().DisplaySize.y * 0.5f), cond, ImVec2(0.5f, 0.5f)); } // OBSOLETE 1.52+
+    static inline bool      IsItemHoveredRect() { return IsItemRectHovered(); }                // OBSOLETE 1.51+
+    static inline bool      IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // OBSOLETE 1.51+. This was partly broken. You probably wanted to use ImGui::GetIO().WantCaptureMouse instead.
+    static inline bool      IsMouseHoveringAnyWindow() { return IsAnyWindowHovered(); }        // OBSOLETE 1.51+
+    static inline bool      IsMouseHoveringWindow() { return IsWindowRectHovered(); }          // OBSOLETE 1.51+
+    static inline bool      CollapsingHeader(const char* label, const char* str_id, bool framed = true, bool default_open = false) { (void)str_id; (void)framed; ImGuiTreeNodeFlags default_open_flags = 1 << 5; return CollapsingHeader(label, (default_open ? default_open_flags : 0)); } // OBSOLETE 1.49+
+    static inline ImFont*   GetWindowFont() { return GetFont(); }                              // OBSOLETE 1.48+
+    static inline float     GetWindowFontSize() { return GetFontSize(); }                      // OBSOLETE 1.48+
+    static inline void      SetScrollPosHere() { SetScrollHere(); }                            // OBSOLETE 1.42+
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // Helpers
 //-----------------------------------------------------------------------------

imgui_internal.h

@@ -433,7 +433,6 @@ struct ImGuiContext
     bool                    ActiveIdIsAlive;                    // Active widget has been seen this frame
     bool                    ActiveIdIsJustActivated;            // Set at the time of activation for one frame
     bool                    ActiveIdAllowOverlap;               // Active widget allows another widget to steal active id (generally for overlapping widgets, but not always)
-
     ImVec2                  ActiveIdClickOffset;                // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
     ImGuiWindow*            ActiveIdWindow;
     ImGuiWindow*            MovedWindow;                        // Track the child window we clicked on to move a window.