>>Hi
>>
>>I am trying to colse an application using the above api functions, but I always get a return value of zero, can you tel me what I am doing wrong
>>
>>lnOk=PostMessage (thisform.lnActiveWindowHandel, WM_CLOSE, 0, 0)
>>
>
>A few questions - what is in lnActiveWindowHandle (ie are you sure it's a valid handle?)
>
>What do you have defined as WM_CLOSE (are you sure the value is defined properly?)
>
>What is the error returned by GetLastError()?
>
>You should probably read the MSDN Library documentation on PostMessage() if you aren't sure of the answers; the information you give is inadequate to analyze the error.

Ed,

According to the SDK, an application processing the message will return zero.