本文整理汇总了VB.NET中System.Runtime.InteropServices.Marshal.GetLastWin32Error方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Marshal.GetLastWin32Error方法的具体用法？VB.NET Marshal.GetLastWin32Error怎么用？VB.NET Marshal.GetLastWin32Error使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Runtime.InteropServices.Marshal的用法示例。
在下文中一共展示了Marshal.GetLastWin32Error方法的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，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Win32
' 导入命名空间
Imports System.Runtime.InteropServices
Module Win32
' Use DllImportAttribute to inport the Win32 MessageBox
' function. Set the SetLastError flag to true to allow
' the function to set the Win32 error.
<DllImportAttribute("user32.dll", SetLastError:=True, CharSet:=CharSet.Unicode)> _
Function MessageBox(ByVal hwnd As IntPtr, ByVal text As String, ByVal caption As String, ByVal type As UInt32) As Integer
End Function
End Module
Module Program
Sub Run()
' Call the MessageBox with normal parameters.
Console.WriteLine("Calling Win32 MessageBox without error...")
Win32.MessageBox(New IntPtr(0), "Press OK...", "Press OK Dialog", 0)
' Get the last error and display it.
Dim errorVal As Integer
errorVal = Marshal.GetLastWin32Error()
Console.WriteLine("The last Win32 Error was: " + errorVal)
' Call the MessageBox with an invalid window handle to
' produce a Win32 error.
Console.WriteLine("Calling Win32 MessageBox with error...")
Win32.MessageBox(New IntPtr(123132), "Press OK...", "Press OK Dialog", 0)
' Get the last error and display it.
errorVal = Marshal.GetLastWin32Error()
Console.WriteLine("The last Win32 Error was: " + errorVal)
End Sub
Sub Main(ByVal args() As String)
Run()
End Sub
End Module
' This code example displays the following to the console:
'
' Calling Win32 MessageBox without error...
' The last Win32 Error was: 0
' Calling Win32 MessageBox with error...
' The last Win32 Error was: 1400