Celestin Apprentice 5/Apprentice-Release5.iso/Source Code/C/Frameworks/TransSkel 3.24/Source/Control Stuff/SkelHiliteControl.c

C/C++ Source or Header | 1996-01-17 | 788 b | 26 lines | [TEXT/CWIE]

/*
 * Set hiliting value of control.  Differs from HiliteControl() in that
 * the control is not set it if it already has that value, in order to minimize
 * drawing.  Returns true if the value was actually changed, false if not.
 *
 * Returning the value can be useful in conjunction with push buttons surrounded
 * by a heavy outline.  When the button is dimmed, the outline should go dim.
 * When the button is made active, the outline should be black.  By knowing
 * whether the hiliting value actually changed, outline redrawing can be skipped
 * when it's unnecessary.
 */

# include    "TransSkel.h"


pascal Boolean
SkelHiliteControl (ControlHandle ctrl, short hilite)
{
    if ((**ctrl).contrlHilite != hilite)
    {
        HiliteControl (ctrl, hilite);
        return (true);
    }
    return (false);
}