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Added cap query support example.

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soukoku 2014-04-20 22:24:05 -04:00
parent a766370930
commit 31f77edb40
11 changed files with 76 additions and 44 deletions
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6
NTwain.Net35/NTwain.Net35.csproj
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@ -85,15 +85,15 @@
<Compile Include="..\NTwain\Internals\MessageLoop.cs">
<Link>Internals\MessageLoop.cs</Link>
</Compile>
<Compile Include="..\NTwain\Internals\NativeMethods.cs">
<Link>Internals\NativeMethods.cs</Link>
</Compile>
<Compile Include="..\NTwain\Internals\TentativeStateCommitable.cs">
<Link>Internals\TentativeStateCommitable.cs</Link>
</Compile>
<Compile Include="..\NTwain\Internals\TransferLogic.cs">
<Link>Internals\TransferLogic.cs</Link>
</Compile>
<Compile Include="..\NTwain\Internals\UnsafeNativeMethods.cs">
<Link>Internals\UnsafeNativeMethods.cs</Link>
</Compile>
<Compile Include="..\NTwain\Internals\WindowsHook.cs">
<Link>Internals\WindowsHook.cs</Link>
</Compile>

24
NTwain/Data/TwainValues.cs
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@ -2037,18 +2037,20 @@ namespace NTwain.Data
/// Bit mask for querying the operation that are supported by the data source on a capability.
/// Corresponds to TWQC_*.
/// </summary>
public static class QuerySupportMask
[Flags]
public enum QuerySupport
{
public const int Get = 0x1;
public const int Set = 0x2;
public const int GetDefault = 0x4;
public const int GetCurrent = 0x8;
public const int Reset = 0x10;
public const int SetConstraint = 0x20;
public const int Constrainable = 0x40;
public const int GetHelp = 0x100;
public const int GetLabel = 0x200;
public const int GetLabelEnum = 0x400;
None = 0,
Get = 0x1,
Set = 0x2,
GetDefault = 0x4,
GetCurrent = 0x8,
Reset = 0x10,
SetConstraint = 0x20,
Constrainable = 0x40,
GetHelp = 0x100,
GetLabel = 0x200,
GetLabelEnum = 0x400
}
/// <summary>

3
NTwain/Internals/ITwainSessionInternal.cs
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@ -3,9 +3,6 @@ using System.Collections.Generic;
namespace NTwain.Internals
{
/// <summary>
/// Internal interface for state management.
/// </summary>
interface ITwainSessionInternal : ITwainSession
{
/// <summary>

14
NTwain/Internals/NativeMethods.cs → NTwain/Internals/UnsafeNativeMethods.cs
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@ -1,26 +1,26 @@
using System;
using System.Runtime.InteropServices;
using System.Security;
namespace NTwain.Internals
{
static class NativeMethods
[SuppressUnmanagedCodeSecurity]
static class UnsafeNativeMethods
{
// should be unsafe native methods?
#region mem stuff for twain 1.x
[DllImport("kernel32", SetLastError = true, EntryPoint = "GlobalAlloc")]
public static extern IntPtr WinGlobalAlloc(uint uFlags, UIntPtr dwBytes);
internal static extern IntPtr WinGlobalAlloc(uint uFlags, UIntPtr dwBytes);
[DllImport("kernel32", SetLastError = true, EntryPoint = "GlobalFree")]
public static extern IntPtr WinGlobalFree(IntPtr hMem);
internal static extern IntPtr WinGlobalFree(IntPtr hMem);
[DllImport("kernel32", SetLastError = true, EntryPoint = "GlobalLock")]
public static extern IntPtr WinGlobalLock(IntPtr handle);
internal static extern IntPtr WinGlobalLock(IntPtr handle);
[DllImport("kernel32", SetLastError = true, EntryPoint = "GlobalUnlock")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool WinGlobalUnlock(IntPtr handle);
internal static extern bool WinGlobalUnlock(IntPtr handle);
#endregion
}

8
NTwain/Internals/WinMemoryManager.cs
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@ -13,7 +13,7 @@ namespace NTwain
{
public IntPtr Allocate(uint size)
{
IntPtr retVal = NativeMethods.WinGlobalAlloc(0x0040, new UIntPtr(size));
IntPtr retVal = UnsafeNativeMethods.WinGlobalAlloc(0x0040, new UIntPtr(size));
if (retVal == IntPtr.Zero)
{
@ -24,17 +24,17 @@ namespace NTwain
public void Free(IntPtr handle)
{
NativeMethods.WinGlobalFree(handle);
UnsafeNativeMethods.WinGlobalFree(handle);
}
public IntPtr Lock(IntPtr handle)
{
return NativeMethods.WinGlobalLock(handle);
return UnsafeNativeMethods.WinGlobalLock(handle);
}
public void Unlock(IntPtr handle)
{
NativeMethods.WinGlobalUnlock(handle);
UnsafeNativeMethods.WinGlobalUnlock(handle);
}
}
}

2
NTwain/NTwain.csproj
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@ -69,7 +69,7 @@
<Compile Include="ITwainState.cs" />
<Compile Include="Internals\WinMemoryManager.cs" />
<Compile Include="Internals\MessageLoop.cs" />
<Compile Include="Internals\NativeMethods.cs" />
<Compile Include="Internals\UnsafeNativeMethods.cs" />
<Compile Include="Platform.cs" />
<Compile Include="Properties\Resources.Designer.cs">
<AutoGen>True</AutoGen>

2
NTwain/Platform.cs
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@ -64,7 +64,7 @@ namespace NTwain
}
static readonly WinMemoryManager _defaultMemManager;
static readonly IMemoryManager _defaultMemManager;
static IMemoryManager _specifiedMemManager;
/// <summary>

31
NTwain/TwainSessionExtensions.cs
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@ -6,8 +6,8 @@ using System.Linq;
namespace NTwain
{
/// <summary>
/// Defines common methods on <see cref="TwainSession"/> using the raw
/// TWAIN triplet api.
/// Defines useful methods on <see cref="TwainSession"/> without having to dive into
/// the raw TWAIN triplet API.
/// </summary>
public static class TwainSessionExtensions
{
@ -68,6 +68,33 @@ namespace NTwain
#region caps routines
/// <summary>
/// Gets the actual supported operations for a capability.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="capId">The cap identifier.</param>
/// <returns></returns>
public static QuerySupport GetCapSupport(this ITwainOperation session, CapabilityId capId)
{
if (session == null) { throw new ArgumentNullException("session"); }
QuerySupport retVal = QuerySupport.None;
using (TWCapability cap = new TWCapability(capId))
{
var rc = session.DGControl.Capability.QuerySupport(cap);
if (rc == ReturnCode.Success)
{
var read = CapReadOut.ReadValue(cap);
if (read.ContainerType == ContainerType.OneValue)
{
retVal = read.OneValue.ConvertToEnum<QuerySupport>();
}
}
}
return retVal;
}
/// <summary>
/// Gets the current value for a capability.
/// </summary>

19
Tests/Tester.WPF/MainWindow.xaml
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@ -25,17 +25,28 @@
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Name}" TextWrapping="Wrap"></TextBlock>
<TextBlock Text="{Binding Version, StringFormat='Version {0}'}" TextWrapping="Wrap" Foreground="{DynamicResource ModernForeground2}"/>
<TextBlock Text="{Binding Protocol, StringFormat='TWAIN {0}'}" Foreground="{DynamicResource ModernForeground2}"/>
<TextBlock Text="{Binding Version, StringFormat='Version {0}'}" TextWrapping="Wrap" Foreground="{DynamicResource ModernForeground2}"
Margin="8 0 0 0"/>
<TextBlock Text="{Binding Protocol, StringFormat='TWAIN {0}'}" Foreground="{DynamicResource ModernForeground2}"
Margin="8 0 0 0"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<Label Content="Caps" Grid.Column="1"></Label>
<ListBox x:Name="CapList" Grid.Row="1" Grid.Column="1" MinWidth="100"
<ListBox x:Name="CapList" Grid.Row="1" Grid.Column="1" Width="150"
SelectionChanged="CapList_SelectionChanged"
Style="{StaticResource AppListBox}"></ListBox>
Style="{StaticResource AppListBox}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Name}" ></TextBlock>
<TextBlock Text="{Binding Supports}" TextWrapping="Wrap" Foreground="{DynamicResource ModernForeground2}"
FontStyle="Italic"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate></ListBox>
<Label Content="Cap values" Grid.Column="2"></Label>
<ListBox x:Name="CapDetailList" Grid.Row="1" Grid.Column="2" MinWidth="100"

3
Tests/Tester.WPF/MainWindow.xaml.cs
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@ -92,7 +92,8 @@ namespace Tester.WPF
{
var caps = _twainVM.SupportedCaps.Select(o => new CapVM
{
Cap = o
Cap = o,
Supports = _twainVM.GetCapSupport(o)
}).OrderBy(o => o.Name).ToList();
CapList.ItemsSource = caps;
}

8
Tests/Tester.WPF/ViewModels/CapVM.cs
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@ -21,13 +21,7 @@ namespace Tester.WPF
}
}
//public void SupportedOperations
//{
// get
// {
// }
//}
public QuerySupport Supports { get; set; }
public override string ToString()
{