xcode samples dont work

[Abhi Reddy]

i ran into these problems when trying to run with xcode

1. ui::ShowDemoWindow() does not exist should be ui::ShowTestWindow();
2. path to cinder libs is wrong should be "$(CINDER_PATH)/lib/macosx/Debug/libcinder.a" and
   "$(CINDER_PATH)/lib/macosx/Release/libcinder.a"
3. crashes as soon as you start the example in ImGuiWindow* GetCurrentWindow()

[Simon Geilfus]

You probably need to update imgui submodule. Imgui::ShowTestWindow() has been deprecated longtime ago. Try git submodule update at the root of the repo.

[Abhi Reddy]

Hi so sorry about that, i ran the update but I am still getting a crash when I resize the window

[Abhi Reddy]

I have mac osx 10.13.3 and xcode 9.2 and cinder from the latest master on github

[Simon Geilfus]

I'll try to find a mac to test this tomorrow.

[Abhi Reddy]

ok thanks so much, yeah it crashes every time i try to resize the window

[Simon Geilfus]

In the meantime, I think a workaround could be to set ui::Options().autoRender to false when initializing ImGui and take care of calling ui::NewFrame / ui::Render yourself.
My guess is that when resizing the window you end up having two ui::Render for one ui::NewFrame, which ImGui doesn't like.

[chewie54]

I'm also having the same issue. Could you provide a code snippet with the fix you suggested in the last message. I'm new to imgui and cinder and glw3. I was able to create a Imgui project with Tinder and add ImGui::initialize to the cinder_imguiApp::setup() and the following to cinder_imguiApp::draw()

bool show_demo_window = true;
gl::clear( Color( 0, 0, 0 ) );
if (show_demo_window)
{
    ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
    ImGui::ShowDemoWindow(&show_demo_window);
}}  

Thanks

[Simon Geilfus]

Initialize ImGui like this in your setup or App constructor:

void MyApp::setup()
{
     ui::initialize( ui::Options().autoRender( false ) );
}

Then manually call ui::NewFrame and ui::Render like this:

void MyApp::update()
{
      ui::NewFrame();
      // keep all your imgui code between those two calls 
      ui::Render();
}

[chewie54]

It fails now at line 3274 of imgui.cpp:

IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount) && "Forgot to call
Render() or EndFrame() at the end of the previous frame?");

Thanks for helping.

[Brandon Liu]

revisions before a777589 work fine on macOS