public static Window Create(string title = "window", int show = C.SW_SHOW, HWND parent = default)
{
var ms = Assembly.GetEntryAssembly().GetModules();
// var hInstance = Marshal.GetHINSTANCE(ms[0]);
var hInstance = default(HINSTANCE);
var window = new Window(title, s_count++);
var wc = new WNDCLASSEXW
{
cbSize = (uint)Marshal.SizeOf(typeof(WNDCLASSEXW)),
style = C.CS_VREDRAW | C.CS_HREDRAW | C.CS_DBLCLKS,
lpszClassName = window.m_className.ToString(),
lpfnWndProc = window.m_delegate,
hInstance = hInstance,
// hCursor = user32.LoadCursorW(default, C.IDC_ARROW),
};
var register = user32.RegisterClassExW(ref wc);
if (register == 0)
{
return(null);
}
var hwnd = user32.CreateWindowExW(0,
window.m_className,
window.m_title,
C.WS_OVERLAPPEDWINDOW,
C.CW_USEDEFAULT,
C.CW_USEDEFAULT,
C.CW_USEDEFAULT,
C.CW_USEDEFAULT,
parent,
static ushort CreateClassAtom()
{
ushort classAtom;
fixed(char *lpszClassName = $"{nameof(UIService)}.X{EntryPointModule:X16}")
{
var wndClassEx = new WNDCLASSEXW {
cbSize = SizeOf <WNDCLASSEXW>(),
style = CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS,
lpfnWndProc = &ForwardWindowMessage,
cbClsExtra = 0,
cbWndExtra = 0,
hInstance = EntryPointModule,
hIcon = HICON.NULL,
hCursor = GetDesktopCursor(),
hbrBackground = (HBRUSH)(COLOR_WINDOW + 1),
lpszMenuName = null,
lpszClassName = (ushort *)lpszClassName,
hIconSm = HICON.NULL
};
ThrowForLastErrorIfZero(classAtom = RegisterClassExW(&wndClassEx));
}
return(classAtom);
}
protected unsafe ushort RegisterClass(string className)
{
this.wndProc = this.WndProcWrapper;
fixed(char *cls = className)
{
var lpWndClass = new WNDCLASSEXW
{
cbSize = (uint)Marshal.SizeOf(typeof(WNDCLASSEXW)),
hInstance = PInvoke.GetModuleHandle((PCWSTR)null),
lpfnWndProc = this.wndProc,
lpszClassName = cls,
};
var atom = PInvoke.RegisterClassEx(lpWndClass);
return(atom);
}
}
private ushort CreateClassAtom()
{
AssertNotDisposedOrDisposing(_state);
ushort classAtom;
{
// lpszClassName should be less than 256 characters (this includes the null terminator)
// Currently, we are well below this limit and should be hitting 74 characters + the null terminator
var className = $"{GetType().FullName}.{EntryPointModule:X16}.{GetHashCode():X8}";
Assert(AssertionsEnabled && (className.Length < byte.MaxValue));
fixed(char *lpszClassName = className)
{
var wndClassEx = new WNDCLASSEXW {
cbSize = SizeOf <WNDCLASSEXW>(),
style = CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS,
lpfnWndProc = &ForwardWindowMessage,
cbClsExtra = 0,
cbWndExtra = 0,
hInstance = EntryPointModule,
hIcon = HICON.NULL,
hCursor = GetDesktopCursor(),
hbrBackground = (IntPtr)(COLOR_WINDOW + 1),
lpszMenuName = null,
lpszClassName = (ushort *)lpszClassName,
hIconSm = HICON.NULL
};
classAtom = RegisterClassExW(&wndClassEx);
}
ThrowForLastErrorIfZero(classAtom, nameof(RegisterClassExW));
}
return(classAtom);
}
public static int Run(DXSample sample, HINSTANCE hInstance, int nCmdShow)
{
var useWarpDevice = false;
// Parse the command line parameters
foreach (var arg in Environment.GetCommandLineArgs())
{
if (Program.Matches(arg, "warp"))
{
useWarpDevice = true;
continue;
}
}
fixed(char *lpszClassName = "DXSampleClass")
fixed(char *lpWindowName = sample.Name)
{
// Initialize the window class.
var windowClass = new WNDCLASSEXW {
cbSize = (uint)sizeof(WNDCLASSEXW),
style = CS_HREDRAW | CS_VREDRAW,
lpfnWndProc = &WindowProc,
hInstance = hInstance,
hCursor = LoadCursorW(HINSTANCE.NULL, (ushort *)IDC_ARROW),
lpszClassName = (ushort *)lpszClassName
};
_ = RegisterClassExW(&windowClass);
// Create the window and store a handle to it.
s_hwnd = CreateWindowExW(
0,
windowClass.lpszClassName,
(ushort *)lpWindowName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
HWND.NULL, // We have no parent window.
HMENU.NULL, // We aren't using menus.
hInstance,
((IntPtr)GCHandle.Alloc(sample)).ToPointer()
);
}
RECT windowRect;
_ = GetClientRect(s_hwnd, &windowRect);
// Initialize the sample. OnInit is defined in each child-implementation of DXSample.
var backgroundColor = new Vector4(0.0f, 0.2f, 0.4f, 1.0f);
var size = new Size(windowRect.right - windowRect.left, windowRect.bottom - windowRect.top);
sample.OnInit(DXGI_FORMAT_UNKNOWN, backgroundColor, DXGI_FORMAT_UNKNOWN, 1.0f, 2, s_hwnd, true, size, useWarpDevice);
_ = ShowWindow(s_hwnd, nCmdShow);
// Main sample loop.
MSG msg;
DispatchPending(&msg);
var lastFramesPerSecond = 0u;
while (msg.message != WM_QUIT)
{
var delta = sample.OnBeginFrame();
sample.OnUpdate(delta);
var framesPerSecond = sample.FramesPerSecond;
if (framesPerSecond != lastFramesPerSecond)
{
fixed(char *lpWindowName = $"{sample.Name} ({framesPerSecond} fps)")
{
_ = SetWindowTextW(s_hwnd, (ushort *)lpWindowName);
}
lastFramesPerSecond = framesPerSecond;
}
if (sample.IsWindowVisible)
{
sample.OnRender();
}
DispatchPending(&msg);
}
sample.OnDestroy();
// Return this part of the WM_QUIT message to Windows.
return((int)msg.wParam);
static void Main(string[] args)
{
var manager = new D3DManager();
var windowProc = new WNDPROC((Win32API.HWND _hwnd, WM uMsg, Win32API.WPARAM wParam, Win32API.LPARAM lParam) =>
{
if (ImGui.ImGui_ImplWin32_WndProcHandler(_hwnd.Value, (uint)uMsg, wParam.Value, lParam.Value) != IntPtr.Zero)
{
return(1);
}
switch (uMsg)
{
case WM.DESTROY:
manager.Dispose();
User32.PostQuitMessage(0);
return(0);
case WM.RESIZE:
// manager.Resize(lParam.LowWord, lParam.HiWord);
s_width = lParam.LowWord;
s_height = lParam.HiWord;
return(0);
case WM.PAINT:
{
PAINTSTRUCT ps = default;
var hdc = User32.BeginPaint(_hwnd, ref ps);
User32.EndPaint(_hwnd, ref ps);
return(0);
}
case WM.MOUSEMOVE:
{
s_mouse.X = lParam.LowWord;
s_mouse.Y = lParam.HiWord;
return(0);
}
case WM.LBUTTONDOWN:
{
// User32.SetCapture(_hwnd);
s_mouse.Buttons |= ButtonFlags.Left;
return(0);
}
case WM.LBUTTONUP:
{
s_mouse.Buttons &= ~ButtonFlags.Left;
if (s_mouse.Buttons == 0)
{
// User32.ReleaseCapture();
}
return(0);
}
case WM.MBUTTONDOWN:
{
// SetCapture(hWnd);
s_mouse.Buttons |= ButtonFlags.Middle;
return(0);
}
case WM.MBUTTONUP:
{
s_mouse.Buttons &= ~ButtonFlags.Middle;
if (s_mouse.Buttons == 0)
{
// ReleaseCapture();
}
return(0);
}
case WM.RBUTTONDOWN:
{
// SetCapture(hWnd);
s_mouse.Buttons |= ButtonFlags.Right;
return(0);
}
case WM.RBUTTONUP:
{
s_mouse.Buttons &= ~ButtonFlags.Right;
if (s_mouse.Buttons == 0)
{
// ReleaseCapture();
}
return(0);
}
case WM.MOUSEWHEEL:
{
s_clearWheel = false;
var d = wParam.HiWord;
if (d > 0)
{
s_mouse.Wheel = 1;
}
else if (d < 0)
{
s_mouse.Wheel = -1;
}
else
{
s_mouse.Wheel = 0;
}
return(0);
}
}
return(User32.DefWindowProcW(_hwnd, uMsg, wParam, lParam));
});
var ptr = Marshal.GetFunctionPointerForDelegate(windowProc);
var windowClass = new WNDCLASSEXW();
windowClass.cbSize = Marshal.SizeOf(typeof(WNDCLASSEXW));
windowClass.style = CS.HREDRAW | CS.VREDRAW;
windowClass.lpfnWndProc = ptr;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.lpszClassName = WINDOW_CLASS;
var register = User32.RegisterClassExW(ref windowClass);
if (register == 0)
{
Console.WriteLine("fail to RegisterClassExW");
return;
}
var hwnd = User32.CreateWindowExW(
0,
WINDOW_CLASS,
"SharpImGui",
WS.OVERLAPPEDWINDOW,
32, 32,
640, 480,
public static int Run(DXSample pSample, HINSTANCE hInstance, int nCmdShow)
{
var useWarpDevice = false;
// Parse the command line parameters
foreach (var arg in Environment.GetCommandLineArgs())
{
if (Program.Matches(arg, "warp"))
{
useWarpDevice = true;
continue;
}
}
fixed(char *lpszClassName = "DXSampleClass")
fixed(char *lpWindowName = pSample.Name)
{
// Initialize the window class.
var windowClass = new WNDCLASSEXW {
cbSize = (uint)sizeof(WNDCLASSEXW),
style = CS_HREDRAW | CS_VREDRAW,
lpfnWndProc = &WindowProc,
hInstance = hInstance,
hCursor = LoadCursorW(IntPtr.Zero, (ushort *)IDC_ARROW),
lpszClassName = (ushort *)lpszClassName
};
_ = RegisterClassExW(&windowClass);
// Create the window and store a handle to it.
s_hwnd = CreateWindowExW(
0,
windowClass.lpszClassName,
(ushort *)lpWindowName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
HWND.NULL, // We have no parent window.
HMENU.NULL, // We aren't using menus.
hInstance,
((IntPtr)GCHandle.Alloc(pSample)).ToPointer()
);
}
RECT windowRect;
_ = GetClientRect(s_hwnd, &windowRect);
// Initialize the sample. OnInit is defined in each child-implementation of DXSample.
var backgroundColor = new Vector4(0.0f, 0.2f, 0.4f, 1.0f);
var size = new Size((windowRect.right - windowRect.left), (windowRect.bottom - windowRect.top));
pSample.OnInit(DXGI_FORMAT_UNKNOWN, backgroundColor, DXGI_FORMAT_UNKNOWN, 1.0f, 2, s_hwnd, true, size, useWarpDevice);
_ = ShowWindow(s_hwnd, nCmdShow);
// Main sample loop.
MSG msg;
do
{
// Process any messages in the queue.
if (PeekMessageW(&msg, IntPtr.Zero, 0, 0, PM_REMOVE) != 0)
{
_ = TranslateMessage(&msg);
_ = DispatchMessageW(&msg);
}
}while (msg.message != WM_QUIT);
pSample.OnDestroy();
// Return this part of the WM_QUIT message to Windows.
return((int)msg.wParam);
}
public static extern short RegisterClassExW([In] ref WNDCLASSEXW lpwc);
public static int Run(DXSample pSample, HINSTANCE hInstance, int nCmdShow)
{
// Parse the command line parameters
pSample.ParseCommandLineArgs(Environment.GetCommandLineArgs());
fixed(char *lpszClassName = "DXSampleClass")
fixed(char *lpWindowName = pSample.Title)
{
// Requires an explicit cast until C# handles UnmanagedCallersOnly
var wndProc = (delegate * stdcall <IntPtr, uint, nuint, nint, nint>)(delegate * managed <IntPtr, uint, nuint, nint, nint>) & WindowProc;
// Initialize the window class.
var windowClass = new WNDCLASSEXW {
cbSize = (uint)sizeof(WNDCLASSEXW),
style = CS_HREDRAW | CS_VREDRAW,
lpfnWndProc = wndProc,
hInstance = hInstance,
hCursor = LoadCursorW(IntPtr.Zero, (ushort *)IDC_ARROW),
lpszClassName = (ushort *)lpszClassName
};
_ = RegisterClassExW(&windowClass);
var windowRect = new RECT {
right = unchecked ((int)pSample.Width),
bottom = unchecked ((int)pSample.Height)
};
_ = AdjustWindowRect(&windowRect, WS_OVERLAPPEDWINDOW, FALSE);
// Create the window and store a handle to it.
s_hwnd = CreateWindowExW(
0,
windowClass.lpszClassName,
(ushort *)lpWindowName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
windowRect.right - windowRect.left,
windowRect.bottom - windowRect.top,
HWND.NULL, // We have no parent window.
HMENU.NULL, // We aren't using menus.
hInstance,
((IntPtr)GCHandle.Alloc(pSample)).ToPointer()
);
}
// Initialize the sample. OnInit is defined in each child-implementation of DXSample.
pSample.OnInit();
_ = ShowWindow(s_hwnd, nCmdShow);
// Main sample loop.
MSG msg;
do
{
// Process any messages in the queue.
if (PeekMessageW(&msg, IntPtr.Zero, 0, 0, PM_REMOVE) != 0)
{
_ = TranslateMessage(&msg);
_ = DispatchMessageW(&msg);
}
}while (msg.message != WM_QUIT);
pSample.OnDestroy();
// Return this part of the WM_QUIT message to Windows.
return((int)msg.wParam);
}
public static int Run(Application application, HINSTANCE hInstance, int nCmdShow)
{
uint height;
uint width;
fixed(char *lpszClassName = "DXSampleClass")
fixed(char *lpWindowName = application.Title)
{
// Initialize the window class.
var windowClass = new WNDCLASSEXW
{
cbSize = (uint)sizeof(WNDCLASSEXW),
style = CS_HREDRAW | CS_VREDRAW,
lpfnWndProc = WindowProcHandle,
hInstance = hInstance,
hCursor = LoadCursorW(IntPtr.Zero, (ushort *)IDC_ARROW),
lpszClassName = (ushort *)lpszClassName
};
_ = RegisterClassExW(&windowClass);
var windowRect = new Rectangle(0, 0, Width, Height);
_ = AdjustWindowRect((RECT *)&windowRect, WS_OVERLAPPEDWINDOW, FALSE);
height = (uint)(windowRect.Bottom - windowRect.Top);
width = (uint)(windowRect.Right - windowRect.Left);
// Create the window and store a handle to it.
Hwnd = CreateWindowExW(
0,
windowClass.lpszClassName,
(ushort *)lpWindowName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
(int)width,
(int)height,
HWND.NULL, // We have no parent window.
HMENU.NULL, // We aren't using menus.
hInstance,
((IntPtr)GCHandle.Alloc(application)).ToPointer()
);
}
// Initialize the sample. OnInit is defined in each child-implementation of DXSample.
application.Init(new ScreenData(height, width, Hwnd));
_ = ShowWindow(Hwnd, nCmdShow);
// Main sample loop.
MSG msg;
do
{
// Process any messages in the queue.
if (PeekMessageW(&msg, IntPtr.Zero, 0, 0, PM_REMOVE) != 0)
{
_ = TranslateMessage(&msg);
_ = DispatchMessageW(&msg);
}
}while (msg.message != WM_QUIT);
application.Destroy();
// Return this part of the WM_QUIT message to Windows.
return((int)msg.wParam);
}
private static extern ushort RegisterClassExW(
ref WNDCLASSEXW wndClass
);
