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I need some help setting up child windows with D3D

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I''m coding my first map editor, and I''m somewhat new to all of this. So my code is based on the D3D tutorials. here''s setup code. This is in Win Main: // Register the window class WNDCLASSEX wc; wc.lpfnWndProc = MsgProc; wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpszClassName = "Map Editor"; wc.cbSize = sizeof(WNDCLASSEX); wc.cbClsExtra=0L; wc.cbWndExtra=0L; wc.hInstance=GetModuleHandle(NULL); wc.hbrBackground = (HBRUSH) GetStockObject (GRAY_BRUSH); RegisterClassEx( &wc ); // Create the application''s window HWND hWnd = CreateWindow( "Map Editor", "Map Editor", WS_OVERLAPPEDWINDOW, 100, 100, RESWIDTH+RESWIDTH/6, RESHEIGHT+RESHEIGHT/8, GetDesktopWindow(), NULL, wc.hInstance, NULL ); wc.style = CS_CLASSDC; wc.lpfnWndProc = ControlProc; wc.lpszClassName = "Render Window"; RegisterClassEx( &wc ); // Create the Render screen HWND RenderhWnd = CreateWindow( "Render Window",NULL, WS_CHILDWINDOW | WS_VISIBLE, 0, 0, RESWIDTH, RESHEIGHT, hWnd, (HMENU)2, wc.hInstance, NULL ); All of that seems to work, but then InitD3D fails, this is the InitD3D function HRESULT InitD3D( HWND hWnd ) { // Create the D3D object. if( NULL == ( g_pD3D = Direct3DCreate8( D3D_SDK_VERSION ) ) ) { MessageBox(hWnd,"error calling Direct3DCreate8","error",MB_OK); return E_FAIL; } // Get the current desktop display mode, so we can set up a back // buffer of the same format D3DDISPLAYMODE d3ddm; if( FAILED( g_pD3D->GetAdapterDisplayMode( D3DADAPTER_DEFAULT, &d3ddm ) ) ) return E_FAIL; // Set up the structure used to create the D3DDevice D3DPRESENT_PARAMETERS d3dpp; ZeroMemory( &d3dpp, sizeof(d3dpp) ); d3dpp.Windowed = TRUE; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.BackBufferFormat = d3ddm.Format; d3dpp.BackBufferCount = 1; d3dpp.hDeviceWindow= hWnd; // Create the D3DDevice if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) ) { MessageBox(hWnd,"error creating D3D device","error",MB_OK); return E_FAIL; } // Turn off culling, so we see the front and back of the triangle g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE ); // Turn off D3D lighting, since we are providing our own vertex colors g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE ); return S_OK; } The create device function fails. I don''t know what I''m doing wrong, this is sort of just hacked up from "Proggramming Windows" and the D3D tutorials. If anyone can help me I''d appreciate it.

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If the method fails, the return value can be one of the following values.


If you get the return code, you can figure out a bit more on why it fails. Hope this helps!

"I kinda think, therefore, I kinda... am?"

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