internal void AssignHandle(IntPtr handle, bool assignUniqueID)
{
lock (this)
{
CheckReleased();
Debug.Assert(handle != IntPtr.Zero, "handle is 0");
Handle = handle;
_priorWindowProcHandle = User32.GetWindowLong(this, User32.GWL.WNDPROC);
Debug.Assert(_priorWindowProcHandle != IntPtr.Zero);
Debug.WriteLineIf(
WndProcChoice.TraceVerbose,
WndProcShouldBeDebuggable ? "Using debuggable wndproc" : "Using normal wndproc");
_windowProc = new User32.WNDPROC(Callback);
AddWindowToTable(handle, this);
// Set the NativeWindow window procedure delegate and get back the native pointer for it.
User32.SetWindowLong(this, User32.GWL.WNDPROC, _windowProc);
_windowProcHandle = User32.GetWindowLong(this, User32.GWL.WNDPROC);
// This shouldn't be possible.
Debug.Assert(_priorWindowProcHandle != _windowProcHandle, "Uh oh! Subclassed ourselves!!!");
if (assignUniqueID &&
((User32.WS)PARAM.ToUInt(User32.GetWindowLong(this, User32.GWL.STYLE))).HasFlag(User32.WS.CHILD) &&
User32.GetWindowLong(this, User32.GWL.ID) == IntPtr.Zero)
{
User32.SetWindowLong(this, User32.GWL.ID, handle);
}
if (_suppressedGC)
{
GC.ReRegisterForFinalize(this);
_suppressedGC = false;
}
OnHandleChange();
}
}
public unsafe void ToUInt_x64_Result()
{
Assert.Equal((uint)0x01020304, PARAM.ToUInt(unchecked ((nint)0x0506070801020304)));
Assert.Equal((uint)0xF1F2F3F4, PARAM.ToUInt(unchecked ((nint)0xF5F6F7F8F1F2F3F4)));
}
public unsafe void ToUInt_x32_Result()
{
Assert.Equal((uint)0x01020304, PARAM.ToUInt((nint)0x01020304));
Assert.Equal((uint)0xF1F2F3F4, PARAM.ToUInt(unchecked ((nint)0xF1F2F3F4)));
}
