VB能不能做个检查系统里是否有QQ登陆的程序？ 如果谁能，请帮个忙啊

有 检测进程是否存在就可以了 ,VB代码：
Const TH32CS_SNAPHEAPLIST = &H1
Const TH32CS_SNAPPROCESS = &H2
Const TH32CS_SNAPTHREAD = &H4
Const TH32CS_SNAPMODULE = &H8
Const TH32CS_SNAPALL = (TH32CS_SNAPHEAPLIST Or TH32CS_SNAPPROCESS Or TH32CS_SNAPTHREAD Or TH32CS_SNAPMODULE)
Const TH32CS_INHERIT = &H80000000
Const MAX_PATH As Integer = 260
Private Type PROCESSENTRY32
dwSize As Long
cntUsage As Long
th32ProcessID As Long
th32DefaultHeapID As Long
th32ModuleID As Long
cntThreads As Long
th32ParentProcessID As Long
pcPriClassBase As Long
dwFlags As Long
szExeFile As String * MAX_PATH
End Type
Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Private Declare Function Process32First Lib "kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function Process32Next Lib "kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Sub ExitProcess Lib "kernel32" (ByVal uExitCode As Long)
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Function exitproc(ByVal exefile As String) As Boolean
exitproc = False
Dim hSnapShot As Long, uProcess As PROCESSENTRY32
hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0&)
uProcess.dwSize = Len(uProcess)
r = Process32First(hSnapShot, uProcess)
Do While r
If Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0)) = exefile Then
exitproc = True
Exit Do
End If
r = Process32Next(hSnapShot, uProcess)
Loop
End Function
Private Sub Command1_Click()
If exitproc("QQ.exe") = True Then
msgbox "QQ正在运行"
End if
End Sub

查看进程里有没有qq这个进程就可以了，VB.net代码
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As String
Dim pList() As System.Diagnostics.Process = System.Diagnostics.Process.GetProcesses
For Each proc As System.Diagnostics.Process In pList
a = proc.ProcessName
If a = "QQ" Then '这里要区分大小写的
Label1.Text = "qq程序已启动"
Exit For
Else
Label1.Text = "qq程序没有启动"
End If
Next
End Sub
End Class

我有，已发送邮箱。

用APIfindwindow函数
会了么？