How to Make Menus Persist After Clicking a MenuItem

Support / Discussions: Main
1

Hi,

I’m trying to make a view menu where you can check and uncheck the MenuItems to display/hide certain features for rendering. I would like it to be such that when you click a MenuItem to select/unselect, it doesn’t de-focus the menu right away so that you can keep on displaying/hiding other things without having to go back up and re-open the view menu again.

Here’s an example of what I want to happen using Solidworks’ view menu:

SolidworksMenuPersist

Here’s what currently happens with my code:

ImguiMenuNoPersist

Additionally, here’s the code I have so far:

if (ImGui::BeginMenu("View")) {
	if (ImGui::BeginMenu("Menu")) {
		static bool variableA = false;
		static bool variableB = false;
		static bool variableC = false;
		static bool variableD = false;
		static bool variableE = false;
		static bool variableF = false;
		static bool variableG = false;

		ImGui::MenuItem("A", "", &variableA);
		ImGui::MenuItem("B", "", &variableB);
		ImGui::MenuItem("C", "", &variableC);
		ImGui::MenuItem("D", "", &variableD);
		ImGui::MenuItem("E", "", &variableE);
		ImGui::MenuItem("F", "", &variableF);
		ImGui::MenuItem("G", "", &variableG);
		ImGui::EndMenu();
	}

	ImGui::EndMenu();
}

Is there any way to do what I want to do without having to hack in my own custom MenuItem function?

Thank you,
Chris Gomez

2

It isn’t exposed in the imgui.h public API but at the moment you can use imgui_internal.h and do:

ImGui::PushItemFlag(ImGuiItemFlags_SelectableDontClosePopup, true);
[...] your MenuItem calls here [...]
ImGui::PopItemFlag();
3

Thank you, that ended up working!