/// <summary>
/// 初始化对象
/// </summary>
/// <param name="hwnd">窗体句柄</param>
public Win32Caret(IntPtr hwnd)
{
Win32Handle handle = new Win32Handle();
handle.handle = hwnd;
myControl = handle;
}
/// <summary>
/// 初始化对象
/// </summary>
/// <param name="hwnd">窗体句柄</param>
public Win32Caret(int hwnd)
{
Win32Handle handle = new Win32Handle();
handle.handle = new IntPtr(hwnd);
myControl = handle;
}
public Win32Caret(int hwnd)
{
this._myControl = null;
var handle = new Win32Handle {
handle = new IntPtr(hwnd)
};
this._myControl = handle;
}
public Win32Caret(IntPtr hwnd)
{
this._myControl = null;
var handle = new Win32Handle
{
handle = hwnd
};
this._myControl = handle;
}
[PlatformSpecific(TestPlatforms.Windows)] // ThreadPoolBoundHandle.BindHandle is not supported on Unix
public void BindHandle_DisposedSyncHandleAsHandle_ThrowsArgumentException()
{
Win32Handle handle = HandleFactory.CreateSyncFileHandleFoWrite();
handle.Dispose();
AssertExtensions.Throws <ArgumentException>("handle", () =>
{
ThreadPoolBoundHandle.BindHandle(handle);
});
}
[PlatformSpecific(TestPlatforms.Windows)] // ThreadPoolBoundHandle.BindHandle is not supported on Unix
public void BindHandle_ClosedAsyncHandleAsHandle_ThrowsArgumentException()
{
using (Win32Handle handle = HandleFactory.CreateAsyncFileHandleForWrite())
{
handle.CloseWithoutDisposing();
AssertExtensions.Throws <ArgumentException>("handle", () =>
{
ThreadPoolBoundHandle.BindHandle(handle);
});
}
}
private static unsafe Win32Handle CreateHandle(bool async, string fileName)
{
Win32Handle handle = DllImport.CreateFile(
fileName,
DllImport.FileAccess.GenericWrite,
DllImport.FileShare.Write,
IntPtr.Zero,
DllImport.CreationDisposition.CreateAlways,
async ? DllImport.FileAttributes.Overlapped : DllImport.FileAttributes.Normal,
IntPtr.Zero);
if (!handle.IsInvalid)
{
return(handle);
}
int errorCode = Marshal.GetLastWin32Error();
string filePath = Path.GetFullPath(fileName);
string message =
$"CreateFile or CreateFile2 failed (error code {errorCode}): {new Win32Exception(errorCode).Message}{Environment.NewLine}" +
$" File name: {fileName}{Environment.NewLine}" +
$" File path: {filePath}{Environment.NewLine}";
if (Directory.Exists(Path.GetDirectoryName(filePath)))
{
try
{
File.WriteAllText(filePath, string.Empty);
message += " Successfully wrote to the file.";
}
catch (Exception ex)
{
message += $" Failed to write to the file: {ex}";
}
}
else
{
message += $" Directory does not exist.";
}
throw new IOException(message);
}
public override async Task ReceiveAsync(Context context)
{
IAgentHandle handle;
switch (context.HandleType)
{
case HandleType.Win32_CloseScreen:
handle = new Win32Handle();
break;
case HandleType.Aforge_Camera:
handle = new CameraHandle();
break;
default:
handle = null;
break;
}
await handle.ReceiveAsync(context);
await handle.SendAsync(context);
}
/// <summary>
/// 初始化对象
/// </summary>
/// <param name="handle">窗体句柄</param>
public WindowInformation(IntPtr handle)
{
myControl = new Win32Handle(handle);
}