/// <summary>
/// Initializes a new instance of the <see cref="TwCapability"/> class.
/// </summary>
/// <param name="cap">The cap.</param>
/// <param name="range">The range.</param>
public TwCapability(TwCap cap, _TwRange range)
{
this.Cap = cap;
this.ConType = TwOn.Range;
this.Handle = Twain32.GlobalAlloc(0x42, Marshal.SizeOf(typeof(_TwRange)));
IntPtr _pTwRange = Twain32.GlobalLock(Handle);
Marshal.StructureToPtr(range, _pTwRange, true);
Twain32.GlobalUnlock(Handle);
}
/// <summary>
/// Initializes a new instance of the <see cref="TwCapability"/> class.
/// </summary>
/// <param name="cap">The cap.</param>
/// <param name="enumeration">The enumeration.</param>
/// <param name="enumerationValue">The enumeration value.</param>
public TwCapability(TwCap cap, _TwEnumeration enumeration, object[] enumerationValue)
{
this.Cap = cap;
this.ConType = TwOn.Enum;
this.Handle = Twain32.GlobalAlloc(0x42, Marshal.SizeOf(typeof(_TwEnumeration)) + (Marshal.SizeOf(enumerationValue[0]) * enumerationValue.Length));
IntPtr _pTwEnumeration = Twain32.GlobalLock(Handle);
Marshal.StructureToPtr(enumeration, _pTwEnumeration, true);
for (int i = 0, _ptr = _pTwEnumeration.ToInt32() + Marshal.SizeOf(typeof(_TwEnumeration)); i < enumerationValue.Length; i++, _ptr += Marshal.SizeOf(enumerationValue[0]))
{
Marshal.StructureToPtr(enumerationValue[i], (IntPtr)_ptr, true);
}
Twain32.GlobalUnlock(Handle);
}
/// <summary>
/// Initializes a new instance of the <see cref="TwCapability"/> class.
/// </summary>
/// <param name="cap">The cap.</param>
/// <param name="array">The array.</param>
/// <param name="arrayValue">The array value.</param>
public TwCapability(TwCap cap, _TwArray array, object[] arrayValue)
{
this.Cap = cap;
this.ConType = TwOn.Array;
this.Handle = Twain32.GlobalAlloc(0x42, Marshal.SizeOf(typeof(_TwArray)) + (Marshal.SizeOf(arrayValue[0]) * arrayValue.Length));
IntPtr _pTwArray = Twain32.GlobalLock(Handle);
Marshal.StructureToPtr(array, _pTwArray, true);
for (int i = 0, _ptr = _pTwArray.ToInt32() + Marshal.SizeOf(typeof(_TwArray)); i < arrayValue.Length; i++, _ptr += Marshal.SizeOf(arrayValue[0]))
{
Marshal.StructureToPtr(arrayValue[i], (IntPtr)_ptr, true);
}
Twain32.GlobalUnlock(Handle);
}
/// <summary>
/// Initializes a new instance of the <see cref="TwCapability"/> class.
/// </summary>
/// <param name="cap">The cap.</param>
/// <param name="value">The value.</param>
/// <param name="type">The type.</param>
public TwCapability(TwCap cap, int value, TwType type)
{
this.Cap = cap;
this.ConType = TwOn.One;
_TwOneValue _value = new _TwOneValue()
{
ItemType = type,
Item = value
};
this.Handle = Twain32.GlobalAlloc(0x42, Marshal.SizeOf(typeof(_TwOneValue)));
IntPtr _pTwOneValue = Twain32.GlobalLock(Handle);
Marshal.StructureToPtr(_value, _pTwOneValue, true);
Twain32.GlobalUnlock(Handle);
}
/// <summary>
/// Возвращает результат для указаной возможности.
/// </summary>
/// <returns>Экземпляр TwArray, TwEnumeration, _TwRange или _TwOneValue.</returns>
public object GetValue()
{
IntPtr _handle = Twain32.GlobalLock(this.Handle);
try {
switch (this.ConType)
{
case TwOn.Array:
_TwArray _res = Marshal.PtrToStructure(_handle, typeof(_TwArray)) as _TwArray;
switch (_res.ItemType)
{
case TwType.Int8:
case TwType.UInt8: {
byte[] _array = new byte[_res.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwArray))), _array, 0, _array.Length);
return(new TwArray <byte>(_res, _array));
}
case TwType.Int16:
case TwType.UInt16:
case TwType.Bool: {
short[] _array = new short[_res.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwArray))), _array, 0, _array.Length);
return(new TwArray <short>(_res, _array));
}
case TwType.Int32:
case TwType.UInt32:
case TwType.Fix32: {
int[] _array = new int[_res.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwArray))), _array, 0, _array.Length);
return(new TwArray <int>(_res, _array));
}
}
break;
case TwOn.Enum:
_TwEnumeration _res2 = Marshal.PtrToStructure(_handle, typeof(_TwEnumeration)) as _TwEnumeration;
switch (_res2.ItemType)
{
case TwType.Int8:
case TwType.UInt8: {
byte[] _array = new byte[_res2.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwEnumeration))), _array, 0, _array.Length);
return(new TwEnumeration <byte>(_res2, _array));
}
case TwType.Int16:
case TwType.UInt16:
case TwType.Bool: {
short[] _array = new short[_res2.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwEnumeration))), _array, 0, _array.Length);
return(new TwEnumeration <short>(_res2, _array));
}
case TwType.Int32:
case TwType.UInt32:
case TwType.Fix32: {
int[] _array = new int[_res2.NumItems];
Marshal.Copy((IntPtr)(_handle.ToInt32() + Marshal.SizeOf(typeof(_TwEnumeration))), _array, 0, _array.Length);
return(new TwEnumeration <int>(_res2, _array));
}
}
break;
case TwOn.Range:
return(Marshal.PtrToStructure(_handle, typeof(_TwRange)));
case TwOn.One:
return(Marshal.PtrToStructure(_handle, typeof(_TwOneValue)));
}
return(null);
} finally {
IntPtr _res2 = Twain32.GlobalFree(_handle);
}
}