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Enabling a Built-in Accessibility Feature

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The following code fragment uses the SystemParametersInfo function to enable the FilterKeys feature:

FILTERKEYS fk; 
BOOL bSuccess; 
 
// Fill in the members of the FILTERKEYS structure.  
 
fk.cbSize = sizeof(FILTERKEYS); 
fk.dwFlags = (FKF_FILTERKEYSON | FKF_HOTKEYACTIVE | 
                       FKF_AVAILABLE | FKF_HOTKEYSOUND |
FKF_CLICKON); 
fk.iWaitMSec = 1000; 
fk.iDelayMSec = 1000; 
fk.iRepeatMSec = 500; 
fk.iBounceMSec = 0; 
 
// Call SystemParametersInfo with the SPI_SETFILTERKEYS flag.  
 
bSuccess = SystemParametersInfo(SPI_SETFILTERKEYS, 0, (LPVOID)
&fk, 0);