Sent to the CPlApplet function of a Control Panel application when the controlling application of the Control Panel closes. The controlling application sends the message once for each dialog box that the application supports.
The dialog box number.
The value that the Control Panel application loaded into the lpData member of the CPLINFO or NEWCPLINFO structure for the dialog box. The application loads the lpData member in response to the CPL_INQUIRE or CPL_NEWINQUIRE message.
If the CPlApplet function processes this message successfully, it should return zero.
In response to this message, a Control Panel application must perform cleanup for the given dialog box.
Minimum supported client
|Windows XP [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|
Build date: 11/16/2013