/// <summary>
/// Sets the appropriate cursor style for the current mouse position.
/// </summary>
private ParentHitTestResult SetCurrentCursor()
{
// Get hit test result & act accordingly.
ParentHitTestResult result = HitTestParentControl();
if (result != ParentHitTestResult.Null)
{
if (result == ParentHitTestResult.TopLeft || result == ParentHitTestResult.BottomRight)
{
Cursor.Current = Cursors.SizeNWSE;
}
else if (result == ParentHitTestResult.BottomLeft || result == ParentHitTestResult.TopRight)
{
Cursor.Current = Cursors.SizeNESW;
}
else if (result == ParentHitTestResult.Left || result == ParentHitTestResult.Right)
{
Cursor.Current = Cursors.SizeWE;
}
else if (result == ParentHitTestResult.Top || result == ParentHitTestResult.Bottom)
{
Cursor.Current = Cursors.SizeNS;
}
}
else
{
Cursor.Current = Cursors.Default;
}
return(result);
}
/// <summary>
/// Moves the window if executed, accepts the windows form that is
/// to be moved.
/// </summary>
/// <param name="handle">The handle to the form, event or control that is to be moved.</param>
/// <param name="result">Tells us precisely which corner the mouse is at, if any.</param>
private void ResizeWindow(IntPtr handle, ParentHitTestResult result)
{
if (result != ParentHitTestResult.Null)
{
// I can't find the documentataion on those variations of the SC_MOVE, I got them by trial + error
// 000 = Mouse Center Reset
// 001 = Left
// 002 = Right
// 003 = Top
// 004 = TopLeft
// 005 = TopRight
// 006 = Bottom
// 007 = BottomLeft
// 008 = BottomRight
if (result == ParentHitTestResult.Left)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF001, IntPtr.Zero);
}
if (result == ParentHitTestResult.Right)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF002, IntPtr.Zero);
}
if (result == ParentHitTestResult.Top)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF003, IntPtr.Zero);
}
if (result == ParentHitTestResult.TopLeft)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF004, IntPtr.Zero);
}
if (result == ParentHitTestResult.TopRight)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF005, IntPtr.Zero);
}
if (result == ParentHitTestResult.Bottom)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF006, IntPtr.Zero);
}
if (result == ParentHitTestResult.BottomLeft)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF007, IntPtr.Zero);
}
if (result == ParentHitTestResult.BottomRight)
{
SendMessage(handle, WM_SYSCOMMAND, (IntPtr)0xF008, IntPtr.Zero);
}
}
ReleaseCapture();
}
