protected virtual void InitializeWindowProcedure()
{
if (NewWindowProcedure != null)
{
return;
}
HandledWindow = new HandleRef(null, User32.GetForegroundWindow());
NewWindowProcedure = WindowProcedure;
NewWindowProcedurePtr = Marshal.GetFunctionPointerForDelegate(NewWindowProcedure);
OldWindowProcedurePtr = User32.SetWindowLongPtr(HandledWindow, -4, NewWindowProcedurePtr);
}
protected virtual void TerminateWindowProcedure()
{
if (NewWindowProcedure == null)
{
return;
}
User32.SetWindowLongPtr(HandledWindow, -4, OldWindowProcedurePtr);
HandledWindow = new HandleRef(null, IntPtr.Zero);
OldWindowProcedurePtr = IntPtr.Zero;
NewWindowProcedurePtr = IntPtr.Zero;
NewWindowProcedure = null;
}
private void InitializeWindowProcedure()
{
if (NewWindowProcedure != null)
{
return;
}
Initialized = true;
NewWindowProcedure = WindowProcedures;
NewWindowProcedurePtr = Marshal.GetFunctionPointerForDelegate(NewWindowProcedure);
OldWindowProcedurePtr = User32.SetWindowLongPtr(HandledWindow, -4, NewWindowProcedurePtr);
}
private void TerminateWindowProcedure()
{
if (NewWindowProcedure == null)
{
return;
}
Initialized = false;
User32.SetWindowLongPtr(HandledWindow, -4, OldWindowProcedurePtr);
OldWindowProcedurePtr = IntPtr.Zero;
NewWindowProcedurePtr = IntPtr.Zero;
NewWindowProcedure = null;
}
