How to close a Property Sheet after deferred Save activity?

I have a property sheet and a property page that has some number of edit
controls.  When the user presses OK or Apply I need to write the "dirty"
control values to an external device (via a serial port) when the user
clicks the "Apply" or "OK" buttons.  My routines that send the values to the
external device are asynchronous.  I start a request and when the request is
complete I receive an "event complete" sort of windows message.

 

When I reach OnApply, I'm able to start the asynchronous "save" operation
and respond with PSNRET_INVALID_NOCHANGEPAGE to keep the page from
terminating immediately. 

 

My question is, when I receive the completion message indicating the
completion of my asynchronous activity I want to then close the property
sheet.  

(I'm simplifying this; there are a number of asynchronous messages and
responses, but I can tell when I'm done).

 

I'm also not quite sure in the OnApply method whether the OK or the Apply
button has been clicked; both get me to OnApply.

 

I'm currently issuing PostMessage (GetPropertySheet().m_hWnd, WM_SYSCOMMAND,
SC_CLOSE, 0L); which is like faking the red x at the top right of the
property sheet.  

 

I feel like I'm cheating.  Is there a better way to close the property sheet
once my async work is done?

 

Dick

 



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