bool IMessageFilter.PreFilterMessage(ref Message msg)
{
bool ret = false;
switch (msg.Msg)
{
case WinMessageHelper.WM_KEYDOWN:
Keys keyDown = (Keys)msg.WParam.ToInt32();
switch (keyDown)
{
case Keys.ControlKey:
KeyboardHelper.Instance.IsCtrlPressing = true;
WinMessageHelper.Instance.PostMessage_MouseMove(this);
break;
}
break;
case WinMessageHelper.WM_KEYUP:
Keys keyUp = (Keys)msg.WParam.ToInt32() | Control.ModifierKeys;
switch (keyUp)
{
case Keys.Delete:
if (SelectedTool != null &&
SelectedTool.ProcessKeyMsg(keyUp))
{
_deleteToolStripMenuItem.PerformClick();
ret = true;
}
break;
case Keys.ControlKey:
KeyboardHelper.Instance.IsCtrlPressing = false;
WinMessageHelper.Instance.PostMessage_MouseMove(this);
break;
}
break;
}
return(ret);
}