public bool UpdateWindowPenetration(bool allowsPenetrate)
{
SetWindowLongFlags oldGWLEx = (SetWindowLongFlags)GetWindowLong(this.handle, WindowLongIndexFlags.GWL_EXSTYLE);
SetWindowLongFlags rGWLEx;
if (allowsPenetrate)
{
rGWLEx = (SetWindowLongFlags)SetWindowLong(this.handle, WindowLongIndexFlags.GWL_EXSTYLE, oldGWLEx | bitsGWLEx);
}
else
{
rGWLEx = (SetWindowLongFlags)SetWindowLong(this.handle, WindowLongIndexFlags.GWL_EXSTYLE, (oldGWLEx & ~bitsGWLEx) | this.preservedGWLEx);
}
if (rGWLEx == 0)
{
return(false);
}
else
{
this.preservedGWLEx = ~(oldGWLEx ^ bitsGWLEx);
return(true);
}
}
public static extern int SetWindowLong(IntPtr hWnd, WindowLongIndexFlags nIndex, SetWindowLongFlags dwNewLong);
public static extern int SetWindowLong(IntPtr hWnd, WindowLongIndexFlags nIndex, SetWindowLongFlags dwNewLong);
public int SetWindowLong(IntPtr hWnd, WindowLongIndexFlags nIndex, SetWindowLongFlags dwNewLong) => SetWindowLong(hWnd, nIndex, dwNewLong);
public virtual void Initialize()
{
SetWindowLongFlags oldGWLEx = (SetWindowLongFlags)GetWindowLong(this.handle, WindowLongIndexFlags.GWL_EXSTYLE);
this.preservedGWLEx = ~(oldGWLEx ^ bitsGWLEx);
}
