本文整理汇总了VB.NET中System.Console.CancelKeyPress事件的典型用法代码示例。如果您正苦于以下问题:VB.NET Console.CancelKeyPress事件的具体用法?VB.NET Console.CancelKeyPress怎么用?VB.NET Console.CancelKeyPress使用的例子?那么恭喜您, 这里精选的事件代码示例或许可以为您提供帮助。您也可以进一步了解该事件所在类System.Console 的用法示例。
在下文中一共展示了Console.CancelKeyPress事件的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。
示例1: Sample
Class Sample
Public Shared Sub Main()
Dim cki As ConsoleKeyInfo
Console.Clear()
' Establish an event handler to process key press events.
AddHandler Console.CancelKeyPress, AddressOf myHandler
While True
Console.Write("Press any key, or 'X' to quit, or ")
Console.WriteLine("CTRL+C to interrupt the read operation:")
' Start a console read operation. Do not display the input.
cki = Console.ReadKey(True)
' Announce the name of the key that was pressed .
Console.WriteLine($" Key pressed: {cki.Key}{vbCrLf}")
' Exit if the user pressed the 'X' key.
If cki.Key = ConsoleKey.X Then Exit While
End While
End Sub
Protected Shared Sub myHandler(ByVal sender As Object, _
ByVal args As ConsoleCancelEventArgs)
Console.WriteLine($"{vbCrLf}The read operation has been interrupted.")
Console.WriteLine($" Key pressed: {args.SpecialKey}")
Console.WriteLine($" Cancel property: {args.Cancel}")
' Set the Cancel property to true to prevent the process from terminating.
Console.WriteLine("Setting the Cancel property to true...")
args.Cancel = True
' Announce the new value of the Cancel property.
Console.WriteLine($" Cancel property: {args.Cancel}")
Console.WriteLine($"The read operation will resume...{vbCrLf}")
End Sub
End Class
' The example diplays output similar to the following:
' Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
' Key pressed: J
'
' Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
' Key pressed: Enter
'
' Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
'
' The read operation has been interrupted.
' Key pressed: ControlC
' Cancel property: False
' Setting the Cancel property to true...
' Cancel property: True
' The read operation will resume...
'
' Key pressed: Q
'
' Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
' Key pressed: X
开发者ID:VB.NET开发者,项目名称:System,代码行数:61,代码来源:Console.CancelKeyPress
注:本文中的System.Console.CancelKeyPress事件示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
请发表评论