fail to sendmessage to CAD

[27925916]

I use a MFC program to sendMessage to  CAD by its hwnd returned from this code "acedGetAcadWinApp()->GetMainWnd()->GetSafeHwnd",and use "acedRegisterFilterWinMsg" to regist a function ,however it can't catch any message from the MFC program.

acedRegisterFilterWinMsg(MonitorWinMsg);
BOOL MonitorWinMsg(MSG* pMsg)
{
  if(pMsg->hwnd == acedGetAcadWinApp()->GetMainWnd()->GetSafeHwnd() && pMsg->lParam != NULL)
{
  return FALSE;//GET the mesasge from MFC Program
}
}

[Alexander.Rivilis]

You can try adsw_acadMainWnd instead of acedGetAcadWinApp()->GetMainWnd()->GetSafeHwnd

[27925916 · Accepted solution]

I use postMessage instead of sendMessage ,it works!😂