TreeNode: moved TreeNodeGetOpen() helper to public API. (#3823, #9251, #7553, #6754, #5423, #2958, #2079, #1947, #1131, #722)

Amend 0653a0d

docs/CHANGELOG.txt

@@ -49,6 +49,10 @@ Breaking Changes:
 
 Other Changes:
 
+- TreeNode:
+   - Moved TreeNodeGetOpen() helper to public API. I was hesitant to make this public
+     because I intend to provide a more generic and feature-full version, but in the meanwhile
+     this will do. (#3823, #9251, #7553, #6754, #5423, #2958, #2079, #1947, #1131, #722)
 - Style: border sizes are now scaled (and rounded) by ScaleAllSizes().
 - Clipper:
   - Clear `DisplayStart`/`DisplayEnd` fields when `Step()` returns false.

imgui.h

@@ -756,6 +756,7 @@ namespace ImGui
     IMGUI_API bool          CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags = 0); // when 'p_visible != NULL': if '*p_visible==true' display an additional small close button on upper right of the header which will set the bool to false when clicked, if '*p_visible==false' don't display the header.
     IMGUI_API void          SetNextItemOpen(bool is_open, ImGuiCond cond = 0);                  // set next TreeNode/CollapsingHeader open state.
     IMGUI_API void          SetNextItemStorageID(ImGuiID storage_id);                           // set id to use for open/close storage (default to same as item id).
+    IMGUI_API bool          TreeNodeGetOpen(ImGuiID storage_id);                                // retrieve tree node open/close state.
 
     // Widgets: Selectables
     // - A selectable highlights when hovered, and can display another color when selected.

imgui_demo.cpp

@@ -294,7 +294,6 @@ void*                               GImGuiDemoMarkerCallbackUserData = NULL;
 namespace ImGui
 {
     IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas);
-    IMGUI_API bool TreeNodeGetOpen(ImGuiID storage_id);
     IMGUI_API void TreeNodeSetOpen(ImGuiID storage_id, bool is_open);
 }