/// <summary>
/// The window proc.
/// </summary>
/// <param name="hwnd">
/// The hwnd.
/// </param>
/// <param name="umsg">
/// The umsg.
/// </param>
/// <param name="wParam">
/// The w param.
/// </param>
/// <param name="lParam">
/// The l param.
/// </param>
/// <returns>
/// The <see cref="IntPtr"/>.
/// </returns>
private IntPtr WindowProc(IntPtr hwnd, uint umsg, IntPtr wParam, IntPtr lParam)
{
var msg = (WM)umsg;
switch (msg)
{
case WM.ACTIVATE:
{
if (_hostConfig.HostPlacement.Frameless)
{
var frameSizeY = User32Methods.GetSystemMetrics(SystemMetrics.SM_CYFRAME);
var frameSizeX = User32Methods.GetSystemMetrics(SystemMetrics.SM_CXFRAME);
var frameMargins = new Margins(frameSizeX, frameSizeX, frameSizeY, frameSizeY);
DwmApiMethods.DwmExtendFrameIntoClientArea(Handle, ref frameMargins);
User32Methods.SetWindowPos(hwnd, IntPtr.Zero, 0, 0, 0, 0, WindowPositionFlags.SWP_NOZORDER | WindowPositionFlags.SWP_NOOWNERZORDER | WindowPositionFlags.SWP_NOMOVE | WindowPositionFlags.SWP_NOSIZE | WindowPositionFlags.SWP_FRAMECHANGED);
}
break;
}
case WM.CREATE:
{
Handle = hwnd;
var size = GetClientSize();
OnCreate(hwnd, size.Width, size.Height);
break;
}
case WM.ERASEBKGND:
return(new IntPtr(1));
case WM.SIZE:
{
var size = GetClientSize();
OnSize(size.Width, size.Height);
break;
}
case WM.CLOSE:
{
OnExit();
Exit();
Environment.Exit(0);
break;
}
case WM.NCHITTEST:
if (_hostConfig.HostPlacement.Frameless)
{
return((IntPtr)NativeMethods.HT_CAPTION);
}
break;
}
return(User32Methods.DefWindowProc(hwnd, umsg, wParam, lParam));
}
public virtual void ApplyDwmConfig()
{
var window = this.m_window;
var policy = (int)DwmNCRenderingPolicy.DWMNCRP_ENABLED;
DwmApiHelpers.DwmSetWindowAttribute(window.Handle, DwmWindowAttributeType.DWMWA_NCRENDERING_POLICY,
ref policy);
var dwmMargins = this.GetDwmMargins();
DwmApiMethods.DwmExtendFrameIntoClientArea(window.Handle, ref dwmMargins);
if (this.BlurBehindEnabled)
{
User32ExperimentalHelpers.EnableBlurBehind(window.Handle);
}
}
/// <summary>
/// The window proc.
/// </summary>
/// <param name="hwnd">
/// The hwnd.
/// </param>
/// <param name="umsg">
/// The umsg.
/// </param>
/// <param name="wParam">
/// The w param.
/// </param>
/// <param name="lParam">
/// The l param.
/// </param>
/// <returns>
/// The <see cref="IntPtr"/>.
/// </returns>
private IntPtr WindowProc(IntPtr hwnd, uint umsg, IntPtr wParam, IntPtr lParam)
{
var msg = (WM)umsg;
switch (msg)
{
case WM.ACTIVATE:
{
if (mHostConfig.HostFrameless)
{
Margins frameMargins = new Margins(7, 7, 27, 7);
DwmApiMethods.DwmExtendFrameIntoClientArea(Handle, ref frameMargins);
User32Methods.SetWindowPos(hwnd, IntPtr.Zero, 0, 0, 0, 0, WindowPositionFlags.SWP_NOZORDER | WindowPositionFlags.SWP_NOOWNERZORDER | WindowPositionFlags.SWP_NOMOVE | WindowPositionFlags.SWP_NOSIZE | WindowPositionFlags.SWP_FRAMECHANGED);
}
break;
}
case WM.CREATE:
{
Handle = hwnd;
var size = GetClientSize();
OnCreate(hwnd, size.Width, size.Height);
break;
}
case WM.ERASEBKGND:
return(new IntPtr(1));
case WM.SIZE:
{
var size = GetClientSize();
OnSize(size.Width, size.Height);
break;
}
case WM.CLOSE:
{
OnExit();
Exit();
Environment.Exit(0);
break;
}
case WM.NCCALCSIZE:
{
if (mHostConfig.HostFrameless)
{
return(IntPtr.Zero);
}
break;
}
case WM.NCHITTEST:
{
if (mHostConfig.HostFrameless)
{
// This might be a bit redundant to perform and should find another way
// to pass the return value rather than performing a hit test again.
var lRet = HitTestNCA(hwnd, wParam, lParam);
return(lRet);
}
break;
}
}
return(User32Methods.DefWindowProc(hwnd, umsg, wParam, lParam));
}
public static bool RunDwmDefWindowProc(ref WindowMessage msg)
{
return(DwmApiMethods.DwmDefWindowProc(msg.Hwnd, (uint)msg.Id, msg.WParam, msg.LParam, out msg.Result));
}
