Пример #1
0
        public static void SetPropertyRange(this WiaItemBase item, int propId, int value, int expectedMin, int expectedMax)
        {
            var prop = item.Properties.GetOrNull(propId);

            if (prop != null)
            {
                if (prop.Attributes.Flags.HasFlag(WiaPropertyFlags.Range))
                {
                    int expectedAbs   = value - expectedMin;
                    int expectedRange = expectedMax - expectedMin;
                    int actualRange   = prop.Attributes.Max - prop.Attributes.Min;
                    int actualValue   = expectedAbs * actualRange / expectedRange + prop.Attributes.Min;
                    if (prop.Attributes.Step != 0)
                    {
                        actualValue -= actualValue % prop.Attributes.Step;
                    }

                    actualValue = Math.Min(actualValue, prop.Attributes.Max);
                    actualValue = Math.Max(actualValue, prop.Attributes.Min);
                    prop.Value  = actualValue;
                }
                else
                {
                    // Not a range, try to set the property directly
                    prop.Value = value;
                }
            }
        }
Пример #2
0
        public static void SetProperty(this WiaItemBase item, int propId, int value)
        {
            var prop = item.Properties.GetOrNull(propId);

            if (prop != null)
            {
                prop.Value = value;
            }
        }
Пример #3
0
        public static void SetPropertyClosest(this WiaItemBase item, int propId, ref int value)
        {
            var prop = item.Properties.GetOrNull(propId);

            if (prop != null)
            {
                if (prop.Attributes.Flags.HasFlag(WiaPropertyFlags.List))
                {
                    int value2 = value;
                    var choice = prop.Attributes.Values.OfType <int>().OrderBy(x => Math.Abs(x - value2)).Cast <int?>().FirstOrDefault();
                    if (choice != null)
                    {
                        prop.Value = choice.Value;
                        value      = choice.Value;
                    }
                }
                else
                {
                    // Not a list, try to set the property directly
                    prop.Value = value;
                }
            }
        }