internal static int GetMessage(ref UnsafeNativeMethods.MSG msg, NativeMethods.HWND hwnd, int nMsgFilterMin, int nMsgFilterMax)
{
int result = UnsafeNativeMethods.GetMessage(ref msg, hwnd, nMsgFilterMin, nMsgFilterMax);
int lastWin32Error = Marshal.GetLastWin32Error();
if (result == -1)
{
ThrowWin32ExceptionsIfError(lastWin32Error);
}
return(result);
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
// The loop the thread uses to wait for queue items to process
private void WaitForWork()
{
SafeWaitHandle handle = _ev.SafeWaitHandle;
UnsafeNativeMethods.MSG msg = new UnsafeNativeMethods.MSG();
while (!_quitting)
{
// pump any messages
while (UnsafeNativeMethods.PeekMessage(ref msg, NativeMethods.HWND.NULL, 0, 0, UnsafeNativeMethods.PM_REMOVE))
{
if (msg.message == UnsafeNativeMethods.WM_QUIT)
{
break;
}
// From the Windows SDK documentation:
// The return value specifies the value returned by the window procedure.
// Although its meaning depends on the message being dispatched, the return
// value generally is ignored.
#pragma warning suppress 6031, 6523
UnsafeNativeMethods.DispatchMessage(ref msg);
}
// do any work items in the queue
DrainQueue();
int lastWin32Error = 0;
int result = Misc.TryMsgWaitForMultipleObjects(handle, false, UnsafeNativeMethods.INFINITE, UnsafeNativeMethods.QS_ALLINPUT, ref lastWin32Error);
if (result == UnsafeNativeMethods.WAIT_FAILED || result == UnsafeNativeMethods.WAIT_TIMEOUT)
{
DrainQueue();
Debug.Assert(_quitting, "MsgWaitForMultipleObjects failed while WaitForWork");
break;
}
}
DrainQueue();
}
int UnsafeNativeMethods.IDocHostUIHandler.TranslateAccelerator(ref UnsafeNativeMethods.MSG msg, ref Guid group, int nCmdID)
{
if (msg.message != WinApi.WM_KEYDOWN)
{
return(_baseIDocHostUIHandler.TranslateAccelerator(ref msg, ref @group, nCmdID));
}
KeyEventArgs e = new KeyEventArgs((Keys)((int)msg.wParam & 0xff) | Control.ModifierKeys);
if ((e.Modifiers == Keys.Control && (e.KeyCode == Keys.O ||
e.KeyCode == Keys.L ||
e.KeyCode == Keys.F ||
e.KeyCode == Keys.P ||
e.KeyCode == Keys.N ||
e.KeyCode == Keys.Oemplus ||
e.KeyCode == Keys.OemMinus)) ||
e.KeyCode == Keys.F5)
{
return(0);
}
else
{
return(_baseIDocHostUIHandler.TranslateAccelerator(ref msg, ref @group, nCmdID));
}
}
