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using System;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace Ryujinx.Ava.UI.Helpers
{
[SupportedOSPlatform("windows")]
internal partial class Win32NativeInterop
{
internal const int GWLP_WNDPROC = -4;
[Flags]
public enum ClassStyles : uint
{
CsClassdc = 0x40,
CsOwndc = 0x20,
}
[Flags]
public enum WindowStyles : uint
{
WsChild = 0x40000000,
}
public enum Cursors : uint
{
IdcArrow = 32512,
}
[SuppressMessage("Design", "CA1069: Enums values should not be duplicated")]
public enum WindowsMessages : uint
{
NcHitTest = 0x0084,
}
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
internal delegate IntPtr WindowProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam);
[StructLayout(LayoutKind.Sequential)]
public struct WndClassEx
{
public int cbSize;
public ClassStyles style;
public IntPtr lpfnWndProc; // not WndProc
public int cbClsExtra;
public int cbWndExtra;
public IntPtr hInstance;
public IntPtr hIcon;
public IntPtr hCursor;
public IntPtr hbrBackground;
public IntPtr lpszMenuName;
public IntPtr lpszClassName;
public IntPtr hIconSm;
public WndClassEx()
{
cbSize = Marshal.SizeOf<WndClassEx>();
}
}
public static IntPtr CreateEmptyCursor()
{
return CreateCursor(IntPtr.Zero, 0, 0, 1, 1, new byte[] { 0xFF }, new byte[] { 0x00 });
}
public static IntPtr CreateArrowCursor()
{
return LoadCursor(IntPtr.Zero, (IntPtr)Cursors.IdcArrow);
}
[LibraryImport("user32.dll")]
public static partial IntPtr SetCursor(IntPtr handle);
[LibraryImport("user32.dll")]
public static partial IntPtr CreateCursor(IntPtr hInst, int xHotSpot, int yHotSpot, int nWidth, int nHeight, [In] byte[] pvAndPlane, [In] byte[] pvXorPlane);
[LibraryImport("user32.dll", SetLastError = true, EntryPoint = "RegisterClassExW")]
public static partial ushort RegisterClassEx(ref WndClassEx param);
[LibraryImport("user32.dll", SetLastError = true, EntryPoint = "UnregisterClassW")]
public static partial short UnregisterClass([MarshalAs(UnmanagedType.LPWStr)] string lpClassName, IntPtr instance);
[LibraryImport("user32.dll", EntryPoint = "DefWindowProcW")]
public static partial IntPtr DefWindowProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam);
[LibraryImport("kernel32.dll", EntryPoint = "GetModuleHandleA")]
public static partial IntPtr GetModuleHandle([MarshalAs(UnmanagedType.LPStr)] string lpModuleName);
[LibraryImport("user32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool DestroyWindow(IntPtr hwnd);
[LibraryImport("user32.dll", SetLastError = true, EntryPoint = "LoadCursorA")]
public static partial IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
[LibraryImport("user32.dll", SetLastError = true, EntryPoint = "CreateWindowExW")]
public static partial IntPtr CreateWindowEx(
uint dwExStyle,
[MarshalAs(UnmanagedType.LPWStr)] string lpClassName,
[MarshalAs(UnmanagedType.LPWStr)] string lpWindowName,
WindowStyles dwStyle,
int x,
int y,
int nWidth,
int nHeight,
IntPtr hWndParent,
IntPtr hMenu,
IntPtr hInstance,
IntPtr lpParam);
[LibraryImport("user32.dll", SetLastError = true)]
public static partial IntPtr SetWindowLongPtrW(IntPtr hWnd, int nIndex, IntPtr value);
}
}
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