/// <summary>
/// Processes Windows messages.
/// </summary>
/// <param name="m">The Windows Message to process. </param>
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case PI.WM_.NCLBUTTONDOWN:
{
// Perform a hit test to determine which area the mouse press is over at the moment
uint result = PI.SendMessage(Handle, PI.WM_.NCHITTEST, IntPtr.Zero, m.LParam);
// Only want to override the behaviour of moving the window via the caption bar
if (result == PI.HT.CAPTION)
{
// Extract screen position of the mouse from the message LPARAM
Point screenPos = new Point(PI.LOWORD(m.LParam),
PI.HIWORD(m.LParam));
// Find the mouse offset relative to the top left of the window
Point offset = new Point(screenPos.X - Location.X, screenPos.Y - Location.Y);
// Do not intercept message if inside the max/close buttons
if (!HitTestMaxButton(offset) && !HitTestCloseButton(offset))
{
// Capture the mouse until the mouse us is received and gain focus so we look active
Capture = true;
Activate();
// Use event to notify the request to drag the window
OnWindowCaptionDragging(new ScreenAndOffsetEventArgs(screenPos, offset));
// Eat the message!
return;
}
}
}
break;
case PI.WM_.KEYDOWN:
base.WndProc(ref m);
FloatingMessages?.OnKEYDOWN(ref m);
return;
case PI.WM_.MOUSEMOVE:
base.WndProc(ref m);
FloatingMessages?.OnMOUSEMOVE();
return;
case PI.WM_.LBUTTONUP:
base.WndProc(ref m);
FloatingMessages?.OnLBUTTONUP();
return;
}
base.WndProc(ref m);
}
internal void WndProc(ref Message m)
{
switch (m.Msg)
{
case PI.WM_.ACTIVATE:
if ((PI.LOWORD(m.WParam) == 0) && // WA_INACTIVE
(PI.HIWORD(m.WParam) == 0)
)
{
if (_blurValues.BlurWhenFocusLost ||
(Form.ActiveForm != null)
)
{
DoTheBlur();
}
}
else
{
RemoveBlur();
}
break;
}
}
bool IMessageFilter.PreFilterMessage(ref Message m)
{
if (!Enabled || !Visible || IsDisposed)
{
return(false);
}
if (m.Msg == PI.WM_MOUSEWHEEL)
{
//don't filter when scroll bar is not visible
if (!engineScrollBar1.Visible)
{
return(false);
}
//if( VerticalScroll == null || !VerticalScroll.Visible )
// return false;
Point pos = new Point(PI.LOWORD((int)m.LParam), PI.HIWORD((int)m.LParam));
try //crashed once on ObjectsWindow. access to disposed object assertion.
{
Control foundControl = GetChildAtPoint(PointToClient(pos));
if (foundControl == null)
{
return(false);
}
if (foundControl == engineScrollBar1)
{
return(false);
}
//!!!!было
//if( !( foundControl is IHCProperty ) )
// return false;
if (dropDownHolder != null && dropDownHolder.Visible)
{
return(false);
}
if (IsDropDownListAtPoint(pos))
{
return(false);
}
int delta = (short)((((long)m.WParam) >> 0x10) & 0xffff);
int scrollStep = delta / 120; //System.Windows.Input.Mouse.MouseWheelDeltaForOneLine;
var newValue = engineScrollBar1.Value - 100 * scrollStep;
engineScrollBar1.Value = newValue;
//// send message to HierarchicalContainer, and ignore other controls
//PI.SendMessage( this.Handle, m.Msg, m.WParam, m.LParam );
return(true);
}
catch { }
}
return(false);
}