Single window

[mnemode2]

I want to use imgui for my simple windows application, I want one window with several controls (bottons, etc)
Is this possible to create such window with imgui?
I don't want one big window with imgui subwindows but one imgui window with controls

NOT like this:

I want to build desktop app

[ocornut]

Just create an OS window that doesn't have OS decorations, then create an imgui window that fills the OS window using SetNextWindowPos(ImVec2(0,0)); SetNextWindowSize(io.DisplaySize);`

[mnemode2]

" OS window that doesn't have OS decorations"
How can I do that on Windows?
via CreateWindow?

[ocornut]

That's not a question related to Dear ImGui. Look up for WS_POPUP WS_EX_TOOLWINDOW flag in Win32 api.

[mehditlili]

Just to precise, SetNextWindowPos(ImVec2(0,0)); SetNextWindowSize(io.DisplaySize); as the name hints should be called before creating the window. On Linux at least, I get an Imgui window without an X button unlike the example above. So keeping the window decorator of my OS is preferred (Using Compiz)

[ocornut]

Amending this old thread

You should not do:

SetNextWindowPos(ImVec2(0,0)); 
SetNextWindowSize(io.DisplaySize); 

But:

ImGuiViewport* viewport = ImGui::GetMainViewport():
SetNextWindowPos(viewport->Pos); 
SetNextWindowSize(viewport->Size); 

To ignore main menu bar.

Which you can also change:

ImGuiViewport* viewport = ImGui::GetMainViewport():
SetNextWindowPos(viewport->WorkPos); 
SetNextWindowSize(viewport->WorkSize);