当我关闭了相关程序,为什么退不IsRunning这个循环,大家给指点,谢谢
Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Public Const SYNCHRONIZE = &H400 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'建立下面函数,用以判断程序是否在运行,如果是,则在运行时返回True。
'RetVal为程序返回参数,通过该参数返回句柄
'成检测到时为TRUE,没有检到时为FALSE
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Function IsRunning(ByVal ProgramID) As Boolean '传入进程标识ID
Dim hProgram As Long '被检测的程序进程句柄
hProgram = OpenProcess(SYNCHRONIZE, False, ProgramID)
If Not hProgram = 0 Then
IsRunning = True
Else
IsRunning = False
End If
CloseHandle hProgram
End Function
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Private Sub Command1_Click()
'例调用某程序
Dim RetVal
MsgBox "开始运行"
RetVal = Shell("notepad.exe", 1)
While IsRunning(RetVal)
DoEvents
Wend
MsgBox "结束运行"
End Sub
Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Public Const SYNCHRONIZE = &H400 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'建立下面函数,用以判断程序是否在运行,如果是,则在运行时返回True。
'RetVal为程序返回参数,通过该参数返回句柄
'成检测到时为TRUE,没有检到时为FALSE
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Function IsRunning(ByVal ProgramID) As Boolean '传入进程标识ID
Dim hProgram As Long '被检测的程序进程句柄
hProgram = OpenProcess(SYNCHRONIZE, False, ProgramID)
If Not hProgram = 0 Then
IsRunning = True
Else
IsRunning = False
End If
CloseHandle hProgram
End Function
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Private Sub Command1_Click()
'例调用某程序
Dim RetVal
MsgBox "开始运行"
RetVal = Shell("notepad.exe", 1)
While IsRunning(RetVal)
DoEvents
Wend
MsgBox "结束运行"
End Sub
DoEvents
Wend
无用,直接调用IsRunning
Private Sub Command1_Click()
'例调用某程序
Dim RetVal
MsgBox "开始运行"
RetVal = Shell("notepad.exe", 1)
While IsRunning(RetVal): MsgBox "结束运行": Exit Sub'在这里加上这个试试
DoEvents
Wend
End Sub
DoEvents 系统可能处理其他事件,所以腿不出来,
可以在IsRunning(RetVal)为true 时加上MsgBox "结束运行": Exit Sub可以退出来
Private Sub Command1_Click()
Dim RetVal
MsgBox "开始运行"
RetVal = Shell("notepad.exe", 1)
While IsRunning(RetVal): If IsRunning(RetVal) = False Then MsgBox "结束运行": Exit Sub
DoEvents
Wend
End Sub