/// <summary>
/// </summary>
public bool TranslateAccelarator(Interop.COMMSG msg)
{
if (activeObject != null)
{
int hr = activeObject.TranslateAccelerator(msg);
if (hr != Interop.S_FALSE)
{
return(true);
}
}
return(false);
}
internal bool PreTranslateMessage(Message msg)
{
Interop.COMMSG lpmsg = new Interop.COMMSG();
lpmsg.hwnd = msg.HWnd;
lpmsg.lParam = msg.LParam;
lpmsg.wParam = msg.WParam;
lpmsg.message = msg.Msg;
if (this.activeObject != null && this.activeObject.TranslateAccelerator(lpmsg) == Interop.S_OK)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// We need to process keystrokes in order to pass them to MSHTML
/// </summary>
public override bool PreProcessMessage(ref Message m)
{
bool handled = false;
if ((m.Msg >= Interop.WM_KEYFIRST) && (m.Msg <= Interop.WM_KEYLAST))
{
// If it's a key down, first see if the key combo is a command key
if (m.Msg == Interop.WM_KEYDOWN)
{
handled = ProcessCmdKey(ref m, (Keys)(int)m.WParam | ModifierKeys);
}
if (!handled)
{
int keyCode = (int)m.WParam;
// Don't let Trident eat Ctrl-PgUp/PgDn
if (((keyCode != (int)Keys.PageUp) && (keyCode != (int)Keys.PageDown)) || ((ModifierKeys & Keys.Control) == 0))
{
Interop.COMMSG cm = new Interop.COMMSG();
cm.hwnd = m.HWnd;
cm.message = m.Msg;
cm.wParam = m.WParam;
cm.lParam = m.LParam;
handled = _site.TranslateAccelarator(cm);
}
else
{
// WndProc for Ctrl-PgUp/PgDn is never called so call it directly here
WndProc(ref m);
handled = true;
}
}
}
if (!handled)
{
handled = base.PreProcessMessage(ref m);
}
return(handled);
}
/// <summary>
///
/// </summary>
/// <param name="msg"></param>
/// <param name="group"></param>
/// <param name="nCmdID"></param>
/// <returns></returns>
/// <remarks>
/// Main Accelerator Keys Supported by MsHtml
/// Accelerator | Description
/// Ctrl-N | Opens the current HTML document in a new WebBrowser window.
/// Crtl-P | Displays a Print dialog box for printing the HTML document.
/// Ctrl-A | Selects the entire contents of the HTML document.
/// Crtl-F | Displays a Find dialog box for searching the HTML document.
/// F5, Ctrl-F5 | Refreshes the currently loaded HTML document.
/// </remarks>
public int TranslateAccelerator(Interop.COMMSG msg, ref Guid group, int nCmdID)
{
const int WM_KEYDOWN = 0x0100;
const int VK_CONTROL = 0x11;
if (msg == null)
{
throw new ArgumentNullException("msg");
}
if (msg.message != WM_KEYDOWN)
{
return(Interop.S_FALSE); // no keydown, allow message
}
Keys keyData = Keys.None;
if (Interop.GetAsyncKeyState(VK_CONTROL) < 0)
{
keyData |= Keys.Control; // Ctrl key pressed
}
int key = msg.wParam.ToInt32();
key &= 0xFF; // get the virtual keycode
keyData |= (Keys)key;
KeyEventArgs kea = new KeyEventArgs(keyData);
hostControl.RaiseOnTranslateAccelerator(kea);
if (kea.Handled)
{
return(Interop.S_OK);
}
// not handled, allow everything else
return(Interop.S_FALSE);
}
public int TranslateAccelerator(Interop.COMMSG msg, ref Guid group, int nCmdID)
{
return(Interop.S_FALSE);
}
public int TranslateAccelerator(Interop.COMMSG lpmsg, short wID)
{
return(Interop.S_FALSE);
}
