[GLFW][OPENGL3] Runtime Error when setup 2 glfw window with dear imgui frame on it

[binaryfox0]

I am a Junior Developer, and use ImGui for simple text editor. When I do a save dialog from opengl in a new window of glfw (not in main window). Compile isnt have any error but when run it runtime error appear

Here is my code
`// Main window (first window)
window[1] = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+OpenGL3 example", NULL, NULL);
if (window == NULL)
return 1;
glfwMakeContextCurrent(window[1]);
glfwSwapInterval(1); // Enable vsync

// Dialog call
if(isDialogCall == true)
{
If dialog is call it will be create second window
window[2] = glfwCreateWindow(1280, 720, "File Explorer", NULL, NULL);
}

// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls

// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();

// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOpenGL(window[1], true);
ImGui_ImplOpenGL3_Init(glsl_version);

if (isDialogCall == true)
{
	ImGui_ImplGlfw_InitForOpenGL(window[1], true);
	ImGui_ImplOpenGL3_Init(glsl_version);
}

// Load Fonts
// (there is a default font, this is only if you want to change it. see extra_fonts/README.txt for more details)
ImVec4 clear_col = ImColor(114, 144, 154);

    ... // Text Editor Code Here

// Main loop
while (!glfwWindowShouldClose(window[1]))
{
	glfwPollEvents();

	// Start the Dear ImGui frame
	ImGui_ImplOpenGL3_NewFrame();
	ImGui_ImplGlfw_NewFrame();
	ImGui::NewFrame();

	ImGui::SetNextWindowPos(ImVec2(0.0f, 0.0f));

// Main frame of first window ImGui::SetNextWindowSize(ImGui::GetIO().DisplaySize);
auto cpos = editor.GetCursorPosition();
ImGui::Begin("Text Editor Demo", nullptr, ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoTitleBar);
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("File"))
{
if (ImGui::MenuItem("Save"))
{
// Editor code here
}
if (ImGui::MenuItem("Quit", "Alt-F4"))
break;
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Edit"))
{
//Editor code here
}

		//Editor code here
	}

	//Editor code here

	ImGui::End();

	// Rendering
	ImGui::Render();
	int display_w, display_h;
	glfwGetFramebufferSize(window[1], &display_w, &display_h);
	glViewport(0, 0, display_w, display_h);
	glClearColor(ImVec4(0.45f, 0.55f, 0.60f, 1.00f).x * ImVec4(0.45f, 0.55f, 0.60f, 1.00f).w, ImVec4(0.45f, 0.55f, 0.60f, 1.00f).y * ImVec4(0.45f, 0.55f, 0.60f, 1.00f).w, ImVec4(0.45f, 0.55f, 0.60f, 1.00f).z * ImVec4(0.45f, 0.55f, 0.60f, 1.00f).w, ImVec4(0.45f, 0.55f, 0.60f, 1.00f).w);
	glClear(GL_COLOR_BUFFER_BIT);
	ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
	
	glfwSwapBuffers(window[1]);

	if (isDialogCall)
	{
   // Create frame in second window
		ImGui::Begin("File Explorer", nullptr, ImGuiWindowFlags_HorizontalScrollbar);
		ImGui::End();
		ImGui::Render();
		ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());

		glfwSwapBuffers(window[1]);
	}
}`

[ocornut]

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