Rectangle IDockDragSource.BeginDrag(Point ptMouse)
{
_mPreDragExStyle = NativeMethods.GetWindowLong(Handle, (int)Win32.GetWindowLongIndex.GWL_EXSTYLE);
NativeMethods.SetWindowLong(Handle,
(int)Win32.GetWindowLongIndex.GWL_EXSTYLE,
_mPreDragExStyle | (int)(Win32.WindowExStyles.WS_EX_TRANSPARENT | Win32.WindowExStyles.WS_EX_LAYERED));
return(Bounds);
}
public static void SetStyle(this Control ctrl, int style, bool on = true)
{
const int GWL_STYLE = -16;
var oldstyle = NativeMethods.GetWindowLong(ctrl.Handle, GWL_STYLE).ToInt32();
if ((oldstyle & style) != style && on)
{
NativeMethods.SetWindowLong(ctrl.Handle, GWL_STYLE, new IntPtr(oldstyle | style));
}
else if ((oldstyle & style) == style && !on)
{
NativeMethods.SetWindowLong(ctrl.Handle, GWL_STYLE, new IntPtr(oldstyle & ~style));
}
ctrl.Refresh();
}
public void CanPenetrate()
{
if (InvokeRequired)
{
Invoke(Ct);
}
else
{
TopMost = true;
NativeMethods.GetWindowLong(Handle, GWL.GWL_EXSTYLE);
NativeMethods.SetWindowLong(Handle, GWL.GWL_EXSTYLE, WS_EX.WS_EX_TRANSPARENT | WS_EX.WS_EX_LAYERED);
// NativeMethods.SetLayeredWindowAttributes(this.Handle, 0, 100, Win32.Consts.LWA.LWA_ALPHA);
}
// int intExTemp = NativeMethods.GetWindowLong(this.Handle, (int)Win32.Consts.GWL.GWL_EXSTYLE);
// int oldGWLEx = NativeMethods.SetWindowLong(this.Handle, (int)Win32.Consts.GWL.GWL_EXSTYLE, (int)Win32.Consts.WS_EX.WS_EX_LAYERED | (int)Win32.Consts.WS_EX.WS_EX_TRANSPARENT);
//实则是 封装 TransparencyKey
// NativeMethods.SetLayeredWindowAttributes(this.Handle, 0x0000ffff, 255, Win32.Consts.LWA.LWA_COLORKEY);
}
private void CanPenetrate()
{
NativeMethods.GetWindowLong(Handle, -20);
NativeMethods.SetWindowLong(Handle, -20, 0x80020);
}