FindWindow error: EntryPointNotFoundException

[zhshqzyc]

Hello, I use vb.net 2005 to create a Form. Suppose the class name is Form1.vb.
And I try to find the handle of the Form in the code Form1.vb.

Private Declare Function FindWindow Lib "User32" Alias "FindWindow" (ByVal pClassName as String, ByVal pWindowName as String) as Long
' ------- many code
Dim retval As Long
retval = FindWindow("WindowsForms10.Window.8.app.0.3ce0bb8",vbNullString)

The string for the class name "WindowsForms10.Window.8.app.0.3ce0bb8" was gotten from the tool WinSpy++. Because I don't know what is the proper name for pWindowName, so I used vbNullString.
But an exception was thrown.

{"Unable to find an entry point named 'FindWindow' in DLL 'User32'.":""}

Can somebody guide me a right direction?

Many thanks.

 

[vb5prgrmr]

Not that I'm an expert on .NET, but does not the form1.vb have a "Handle". I know in 6.0 it is me.hwnd and in 2k8 it is me.handle. Is it not the same for 2k5 (I don't have a machine it is installed on at the moment).



Good Luck

 

[ArkM]

There are FindWindowA and FindWindowW (for Unicode) true entry points for FindWindow generic API name.
May be it helps...

 

[vb5prgrmr]

From VB6.0 API Viewer...
[tt]
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
[/tt]



Good Luck

 

[zhshqzyc]

Thank you.