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@ -23,7 +23,7 @@ or view this file with any Markdown viewer.
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| [I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-clipping-or-disappearing-when-i-move-windows-around) |
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| [I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-displaying-outside-their-expected-windows-boundaries) |
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| **Q&A: Usage** |
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| **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?](#q-about-the-id-stack-system)** |
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| **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?]<br>How can I have multiple windows with the same label?](#q-about-the-id-stack-system)** |
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| [How can I display an image? What is ImTextureID, how does it work?](#q-how-can-i-display-an-image-what-is-imtextureid-how-does-it-work)|
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| [How can I use my own math types instead of ImVec2/ImVec4?](#q-how-can-i-use-my-own-math-types-instead-of-imvec2imvec4) |
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| [How can I interact with standard C++ types (such as std::string and std::vector)?](#q-how-can-i-interact-with-standard-c-types-such-as-stdstring-and-stdvector) |
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@ -190,6 +190,7 @@ Refer to rendering backends in the [examples/](https://github.com/ocornut/imgui/
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### Q: Why is my widget not reacting when I click on it?
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### Q: How can I have widgets with an empty label?
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### Q: How can I have multiple widgets with the same label?
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### Q: How can I have multiple windows with the same label?
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A primer on labels and the ID Stack...
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@ -723,9 +723,11 @@ CODE
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Q&A: Usage
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----------
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Q: Why is my widget not reacting when I click on it?
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Q: How can I have widgets with an empty label?
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Q: How can I have multiple widgets with the same label?
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Q: About the ID Stack system..
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- Why is my widget not reacting when I click on it?
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- How can I have widgets with an empty label?
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- How can I have multiple widgets with the same label?
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- How can I have multiple windows with the same label?
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Q: How can I display an image? What is ImTextureID, how does it works?
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Q: How can I use my own math types instead of ImVec2/ImVec4?
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Q: How can I interact with standard C++ types (such as std::string and std::vector)?
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@ -786,6 +786,7 @@ static void ShowDemoWindowWidgets()
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for (int i = 0; i < 6; i++)
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{
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// Disable the default "open on single-click behavior" + set Selected flag according to our selection.
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// To alter selection we use IsItemClicked() && !IsItemToggledOpen(), so clicking on an arrow doesn't alter selection.
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ImGuiTreeNodeFlags node_flags = base_flags;
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const bool is_selected = (selection_mask & (1 << i)) != 0;
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if (is_selected)
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@ -794,7 +795,7 @@ static void ShowDemoWindowWidgets()
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{
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// Items 0..2 are Tree Node
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bool node_open = ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Node %d", i);
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if (ImGui::IsItemClicked())
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if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
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node_clicked = i;
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if (test_drag_and_drop && ImGui::BeginDragDropSource())
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{
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@ -815,7 +816,7 @@ static void ShowDemoWindowWidgets()
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// use BulletText() or advance the cursor by GetTreeNodeToLabelSpacing() and call Text().
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node_flags |= ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen; // ImGuiTreeNodeFlags_Bullet
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ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Leaf %d", i);
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if (ImGui::IsItemClicked())
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if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
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node_clicked = i;
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if (test_drag_and_drop && ImGui::BeginDragDropSource())
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{
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