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Sample: SDK.Fuel.cpp

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//Copyright (c) Microsoft Corporation.  All rights reserved.
// SDK.Fuel.c

//    Set up gauge header
char fuel_gauge_name[]        = GAUGE_NAME;
extern PELEMENT_HEADER        fuel_list;
extern MOUSERECT            fuel_mouse_rect[];

GAUGE_HEADER_FS700( GAUGE_W, fuel_gauge_name, &fuel;_list, \
                        fuel_mouse_rect, 0, 0, 0, 0 );


/////////////////////////////////////////////////////////////////////////////
FAILURE_RECORD    fuel_fail[] =
{
    {FAIL_SYSTEM_ELECTRICAL_PANELS, FAIL_ACTION_ZERO},
    {FAIL_GAUGE_FUEL_INDICATORS, FAIL_ACTION_FREEZE},
    {FAIL_NONE, FAIL_ACTION_NONE}
};


/////////////////////////////////////////////////////////////////////////////
#define    GAUGE_MIN_FUEL    0
#define    GAUGE_MAX_FUEL    75

NONLINEARITY  fuel_nonlinearity[] =
{
    {{30,    182},     0, 0},
    {{119,     47},    25, 0},
    {{246,     93},    50, 0},
    {{241,    221},    75, 0}
};

FLOAT64 FSAPI fuel_needle_cb( PELEMENT_NEEDLE pelement )
{
    FLOAT64    val = pelement->source_var.var_value.n;

    if (val > GAUGE_MAX_FUEL)
        val = GAUGE_MAX_FUEL;
    else if (val < GAUGE_MIN_FUEL)
        val = GAUGE_MIN_FUEL;

    return val;
}

MAKE_NEEDLE
(
    fuel_needle,
    BMP_FUEL_SMALL_NEEDLE,
    NULL,
    fuel_fail,
    IMAGE_USE_TRANSPARENCY|IMAGE_USE_ERASE|IMAGE_BILINEAR_COLOR,
    0,
    150, 150,
    6, 12,
    TOTAL_FUEL_QUANTITY_GALLONS,fuel_needle_cb,
    fuel_nonlinearity,
    6
)


PELEMENT_HEADER        fuel_needle_list[] =
{
    (PELEMENT_HEADER)&fuel;_needle,
    NULL
};


/////////////////////////////////////////////////////////////////////////////
MAKE_STATIC
(
    fuel_background,
    BMP_FUEL_SMALL_BACKGROUND,
    &fuel;_needle_list,
    fuel_fail,
    IMAGE_USE_TRANSPARENCY,
    0,
    9, 0
)

PELEMENT_HEADER        fuel_list    = &fuel;_background.header;

/////////////////////////////////////////////////////////////////////////////
MOUSE_BEGIN( fuel_mouse_rect, HELPID_GAUGE_FUEL, 0, 0 )
MOUSE_END


/////////////////////////////////////////////////////////////////////////////
#undef GAUGE_NAME
#undef GAUGEHDR_VAR_NAME
#undef GAUGE_W