const tFont *pF = pFnt;          \
            pW->pFont = pF;                  \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Changes the image drawn on the active area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to be modified.
//! \param pImg is a pointer to the image to draw onto the slider.
//!
//! This function changes the image that is drawn on the active area of the
//! slider.  This image will be centered within the widget rectangle and the
//! portion represented by the current slider value will be visible.  The
//! display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderImageSet(pWidget, pImg)        \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            const unsigned char *pI = pImg;  \
            pW->pucImage = pI;               \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Changes the image drawn on the background area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to be modified.
//! \param pImg is a pointer to the image to draw onto the background area of
//! the slider.
//!
//! This function changes the image that is drawn onto the background area of
//! the slider.  This image will be centered within the widget rectangle and
//! the portion in the area not represented by the current slider value will
//! be visible.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderBackgroundImageSet(pWidget, pImg)  \
        do                                       \
        {                                        \
            tSliderWidget *pW = pWidget;         \
            const unsigned char *pI = pImg;      \
            pW->pucBackgroundImage = pI;         \
        }                                        \
        while(0)

//*****************************************************************************
//
//! Disables the image on the active area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function disables the drawing of an image on the active area of a
//! slider widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderImageOff(pWidget)              \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            pW->ulStyle &= ~(SL_STYLE_IMG);  \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Enables the image on the active area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function enables the drawing of an image on the active area of a
//! slider widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderImageOn(pWidget)               \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            pW->ulStyle |= SL_STYLE_IMG;     \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Disables the image on the background area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function disables the drawing of an image on the background area of a
//! slider widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderBackgroundImageOff(pWidget)           \
        do                                          \
        {                                           \
            tSliderWidget *pW = pWidget;            \
            pW->ulStyle &= ~(SL_STYLE_BACKG_IMG);   \
        }                                           \
        while(0)

//*****************************************************************************
//
//! Enables the image on the background area of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function enables the drawing of an image on the background area of a
//! slider widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderBackgroundImageOn(pWidget)        \
        do                                      \
        {                                       \
            tSliderWidget *pW = pWidget;        \
            pW->ulStyle |= SL_STYLE_BACKG_IMG;  \
        }                                       \
        while(0)

//*****************************************************************************
//
//! Sets the outline color of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to be modified.
//! \param ulColor is the 24-bit RGB color to use to outline the slider.
//!
//! This function changes the color used to outline the slider on the
//! display.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderOutlineColorSet(pWidget, ulColor)     \
        do                                          \
        {                                           \
            tSliderWidget *pW = pWidget;            \
            pW->ulOutlineColor = ulColor;           \
        }                                           \
        while(0)

//*****************************************************************************
//
//! Disables outlining of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function disables the outlining of a slider widget.  The display
//! is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderOutlineOff(pWidget)               \
        do                                      \
        {                                       \
            tSliderWidget *pW = pWidget;        \
            pW->ulStyle &= ~(SL_STYLE_OUTLINE); \
        }                                       \
        while(0)

//*****************************************************************************
//
//! Enables outlining of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function enables the outlining of a slider widget.  The display
//! is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderOutlineOn(pWidget)             \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            pW->ulStyle |= SL_STYLE_OUTLINE; \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Sets the text color of the active portion of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to be modified.
//! \param ulColor is the 24-bit RGB color to use to draw text on the slider.
//!
//! This function changes the color used to draw text on the active portion of
//! the slider on the display.  The display is not updated until the next paint
//! request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderTextColorSet(pWidget, ulColor)     \
        do                                       \
        {                                        \
            tSliderWidget *pW = pWidget;         \
            pW->ulTextColor = ulColor;           \
        }                                        \
        while(0)

//*****************************************************************************
//
//! Sets the background text color of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to be modified.
//! \param ulColor is the 24-bit RGB color to use to draw background text on
//! the slider.
//!
//! This function changes the color used to draw text on the slider's
//! background portion on the display.  The display is not updated until the
//! next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderBackgroundTextColorSet(pWidget, ulColor)  \
        do                                              \
        {                                               \
            tSliderWidget *pW = pWidget;                \
            pW->ulBackgroundTextColor = ulColor;        \
        }                                               \
        while(0)

//*****************************************************************************
//
//! Disables the text on the active portion of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function disables the drawing of text on the active portion of a
//! slider widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderTextOff(pWidget)               \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            pW->ulStyle &= ~(SL_STYLE_TEXT); \
        }                                    \
        while(0)

//*****************************************************************************
//
//! Enables the text on the active portion of a slider widget.
//!
//! \param pWidget is a pointer to the slider widget to modify.
//!
//! This function enables the drawing of text on the active portion of a slider
//! widget.  The display is not updated until the next paint request.
//!
//! \return None.
//
//*****************************************************************************
#define SliderTextOn(pWidget)                \
        do                                   \
        {                                    \
            tSliderWidget *pW = pWidget;     \
            pW->ulStyle |= SL_STYLE_TEXT;    \
        }                                    \
        while(0)

//*****************************************************************************
//