Add IsItemDisabled

imgui.cpp

@@ -4909,6 +4909,12 @@ bool ImGui::IsItemDeactivatedAfterEdit()
     return IsItemDeactivated() && (g.ActiveIdPreviousFrameHasBeenEditedBefore || (g.ActiveId == 0 && g.ActiveIdHasBeenEditedBefore));
 }
 
+bool ImGui::IsItemDisabled()
+{
+    ImGuiContext& g = *GImGui;
+    return (g.LastItemData.InFlags & ImGuiItemFlags_Disabled) != 0;
+}
+
 // == GetItemID() == GetFocusID()
 bool ImGui::IsItemFocused()
 {

imgui.h

@@ -843,6 +843,7 @@ namespace ImGui
     IMGUI_API bool          IsItemActivated();                                                  // was the last item just made active (item was previously inactive).
     IMGUI_API bool          IsItemDeactivated();                                                // was the last item just made inactive (item was previously active). Useful for Undo/Redo patterns with widgets that requires continuous editing.
     IMGUI_API bool          IsItemDeactivatedAfterEdit();                                       // was the last item just made inactive and made a value change when it was active? (e.g. Slider/Drag moved). Useful for Undo/Redo patterns with widgets that requires continuous editing. Note that you may get false positives (some widgets such as Combo()/ListBox()/Selectable() will return true even when clicking an already selected item).
+    IMGUI_API bool          IsItemDisabled();                                                   // is the last item disabled? (e.g. we can't interact with it because BeginDisabled() was called before it)    
     IMGUI_API bool          IsItemToggledOpen();                                                // was the last item open state toggled? set by TreeNode().
     IMGUI_API bool          IsAnyItemHovered();                                                 // is any item hovered?
     IMGUI_API bool          IsAnyItemActive();                                                  // is any item active?