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我得到Win32Exception - 生成代碼中的「類已經存在」。相同的代碼在我的演示項目中沒有問題。什麼可能是一個問題?Win32Exception - 類已經存在
Private Class MyClientWindow
Inherits NativeWindow
Public Sub New(ByVal parent As Form)
Dim cp As CreateParams = New CreateParams()
' Fill in the CreateParams details.
cp.Caption = "Parent Static Window"
cp.ClassName = "Static"
' Set the position on the form
cp.X = 0
cp.Y = 0
cp.Height = 0
cp.Width = 0
' Specify the form as the parent.
cp.Parent = parent.Handle
' Create as a child of the specified parent
cp.Style = WS_CHILD Or WS_VISIBLE
' Create the actual window
Me.CreateHandle(cp)
End Sub
End Class
System.ComponentModel.Win32Exception was unhandled by user code.
ErrorCode=-2147467259,
Message=Class already exists,
NativeErrorCode=1410,
StackTrace:
at System.Windows.Forms.NativeWindow.WindowClass.RegisterClass()
at System.Windows.Forms.NativeWindow.WindowClass.Create(String className, Int32 classStyle)
at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
如果你改變了類名,會發生什麼? – jdigital
是的,大寫classname使它工作 – walter