An application sends the WM_CPL_LAUNCH message to Windows Control Panel to request that a Control Panel application be started.
WM_CPL_LAUNCH hwnd = (HWND) wParam; // handle of sending window lpszAppName = (LPSTR) lParam; // application-name string
If the application starts, the return value is TRUE; otherwise, it is FALSE.
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Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
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