DirectX11 2 window rendering

Question

How can I render my objects with DirectX into 2 separated windows?

If you want to answer your own question, you should write an actual answer instead of putting the answer in the question. — Borgleader, Jan 22 '14 at 20:15
@Quest That's nice you'll remember that, but you should do that for this question, like right now. Move the answer into an answer and accept it, and change the question part to actually have a well worded question. Otherwise this feels incomplete, and I don't want to upvote a topic with poor formatting like this. Actually, I'm inclined to downvote and flag it unless this is done. — leetNightshade, Feb 21 '14 at 00:24
@Quest I hope my comment didn't sound harsh. Thanks for following through! :) — leetNightshade, Feb 21 '14 at 17:33

score 5 · Accepted Answer · answered Feb 21 '14 at 16:28

You need to create one SwapChain and RenderTargetView for every window.

1 if you created your device via CreateDeviceAndSwapChain you need to obtain IDXGIFactory first

IDXGIDevice * device;
d3ddevice->QueryInterface(__uuidof(IDXGIDevice), (void**)&device);

IDXGIAdapter * adapter;
device->GetParent(__uuidof(IDXGIAdapter), (void**)&adapter);

IDXGIFactory * factory;
adapter->GetParent(__uuidof(DDXGIFactory), (void**)&factory);

With DXGIFactory you can create additional swapchain for new window

factory->CreateSwapChain(g_pd3dDevice, &sd, &g_pSwapChain2);

then create a render target view

ID3D11Texture2D* pBackBuffer = NULL;
hr = g_pSwapChain2->GetBuffer( 0, __uuidof( ID3D11Texture2D ), ( LPVOID* )&pBackBuffer );
if( FAILED( hr ) )
    return hr;

hr = g_pd3dDevice->CreateRenderTargetView( pBackBuffer, NULL, &g_pRenderTargetView );
pBackBuffer->Release();
if( FAILED( hr ) )
    return hr;

And finally just set your render target(s) and Draw something!

g_immediateContext->OMSetRenderTargets(1, &g_RenderTargetView, NULL);
....

I hope this has been helpful.

Best regards Quest :)

DirectX11 2 window rendering

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