sslider (SHORT)

Position of slider.

If this value is outside the scroll-bar range, the slider is moved to the nearest valid position within the range.

sfirst (SHORT)

First bound.

This value must not be less than 0. If a value less than 0 is supplied, 0 is used as the value.

slast (SHORT)

Last bound.

The value must not be less than 0 or sfirst. If a value less than this is supplied, the higher of 0 or sfirst is used as the value.

rc (BOOL)

Success indicator.

TRUE

Successful completion
FALSE
Error occurred.

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