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July 29, 2024 05:39
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Create Window and Swapchain with CsWin32
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| using System; | |
| using System.Runtime.InteropServices; | |
| using System.Runtime.Versioning; | |
| using Microsoft.Win32.SafeHandles; | |
| using Windows.Win32; | |
| using Windows.Win32.Foundation; | |
| using Windows.Win32.Graphics.Direct3D; | |
| using Windows.Win32.Graphics.Direct3D11; | |
| using Windows.Win32.Graphics.Dxgi; | |
| using Windows.Win32.Graphics.Dxgi.Common; | |
| using Windows.Win32.System.Com; | |
| using Windows.Win32.UI.WindowsAndMessaging; | |
| [assembly: SupportedOSPlatform("windows10.0.10240")] | |
| namespace ConsoleApp5; | |
| internal class Program | |
| { | |
| [UnmanagedFunctionPointer(CallingConvention.StdCall)] | |
| private delegate LRESULT WndProcDelegate(HWND hwnd, uint msg, WPARAM wp, LPARAM lp); | |
| private static readonly WndProcDelegate _wndProc = WndProc; | |
| static unsafe void Main() | |
| { | |
| ID3D11Device* device; | |
| PInvoke.D3D11CreateDevice( | |
| null, | |
| D3D_DRIVER_TYPE.D3D_DRIVER_TYPE_HARDWARE, | |
| HMODULE.Null, | |
| D3D11_CREATE_DEVICE_FLAG.D3D11_CREATE_DEVICE_DEBUG, | |
| null, | |
| 0, | |
| 7, | |
| &device, | |
| null, | |
| null).ThrowOnFailure(); | |
| PInvoke.CreateDXGIFactory2(DXGI_CREATE_FACTORY_FLAGS.DXGI_CREATE_FACTORY_DEBUG, typeof(IDXGIFactory3).GUID, out var obj).ThrowOnFailure(); | |
| var fac = (IDXGIFactory3*)obj; | |
| var clsName = "MyWindowClass"; | |
| var cls = new WNDCLASSW | |
| { | |
| lpfnWndProc = (delegate* unmanaged[Stdcall]<HWND, uint, WPARAM, LPARAM, LRESULT>)Marshal.GetFunctionPointerForDelegate(_wndProc) | |
| }; | |
| fixed (char* n = clsName) | |
| { | |
| cls.lpszClassName = n; | |
| } | |
| PInvoke.RegisterClass(cls); | |
| cls.hInstance = PInvoke.GetModuleHandle(new PCWSTR()); | |
| PInvoke.RegisterClass(cls); | |
| var hwnd = PInvoke.CreateWindowEx( | |
| 0, | |
| clsName, | |
| "test", | |
| WINDOW_STYLE.WS_OVERLAPPED, | |
| 0, | |
| 0, | |
| 100, 100, | |
| HWND.Null, | |
| null, | |
| new SafeFileHandle(cls.hInstance.Value, false), // whatever handle | |
| null); | |
| IDXGISwapChain1* sw; | |
| var desc = new DXGI_SWAP_CHAIN_DESC1() | |
| { | |
| BufferCount = 2, | |
| Format = DXGI_FORMAT.DXGI_FORMAT_R8G8B8A8_UNORM, | |
| BufferUsage = DXGI_USAGE.DXGI_USAGE_RENDER_TARGET_OUTPUT, | |
| SwapEffect = DXGI_SWAP_EFFECT.DXGI_SWAP_EFFECT_FLIP_DISCARD, | |
| Scaling = DXGI_SCALING.DXGI_SCALING_NONE, | |
| Flags = DXGI_SWAP_CHAIN_FLAG.DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT, | |
| SampleDesc = new DXGI_SAMPLE_DESC { Count = 1 }, | |
| }; | |
| fac->CreateSwapChainForHwnd((IUnknown*)device, hwnd, desc, null, null, &sw).ThrowOnFailure(); | |
| sw->QueryInterface(typeof(IDXGISwapChain3).GUID, out var ppvObject).ThrowOnFailure(); | |
| var sw3 = (IDXGISwapChain3*)ppvObject; | |
| var h = sw3->GetFrameLatencyWaitableObject(); | |
| Console.WriteLine(h.Value); | |
| sw->Release(); | |
| fac->Release(); | |
| device->Release(); | |
| } | |
| static LRESULT WndProc(HWND hwnd, uint msg, WPARAM wp, LPARAM lp) | |
| { | |
| return PInvoke.DefWindowProc(hwnd, msg, wp, lp); | |
| } | |
| } |
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With NativeMethods.txt:
IDXGISwapChain3
IDXGIFactory3
CreateDXGIFactory2
D3D11CreateDevice
CreateWindowExW
RegisterClassW
GetModuleHandleW
DefWindowProcW