API函数是:
Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nSize As Long) As Long
请详细解释该函数,我不知道该函数是什么意思和怎么使用它!!多谢,我在线等待!
能举个例子更好,多谢!
Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nSize As Long) As Long
请详细解释该函数,我不知道该函数是什么意思和怎么使用它!!多谢,我在线等待!
能举个例子更好,多谢!
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
说明
取得当前用户的名字
返回值
Long,TRUE(非零)表示成功,否则返回零。会设置GetLastError
参数表
参数 类型及说明
lpBuffer String,一个字串缓冲区,预先初始化成由nSize指定的长度。它将用于容纳用户名
nSize Long,初始化成lpBuffer的长度。返回以后,它会包含载入lpBuffer的字符数量
示例
Dim s$, cnt&, dl&
cnt& = 199
s$ = String$(200,0)
dl& = GetUserName(s$, cnt)
Debug.Print Left$(s$, cnt); cnt
Dim lngUserNameSize As LonglngUserNameSize = 30
strUsername = String(lngUserNameSize + 1, 0)
If (GetUserName(strUsername, lngUserNameSize) = 1) Then
strUsername = Mid(strUsername, 1, lngUserNameSize - 1)
Else
strUsername = vbNullString
End IfText1.Text = strUsername
Private Declare Function GetTempPath Lib "kernel32" Alias "GetTempPathA" (ByVal nBufferLength As Long, ByVal lpBuffer As String) As Long
Private Declare Function IsIconic Lib "user32" (ByVal hwnd As Long) As Long
Private Sub Form_Load()
Timer1.Interval = 100
Timer1.Enabled = True
Dim strTemp As String, strUserName As String
'Create a buffer
strTemp = String(100, Chr$(0))
'Get the temporary path
GetTempPath 100, strTemp
'strip the rest of the buffer
strTemp = Left$(strTemp, InStr(strTemp, Chr$(0)) - 1) 'Create a buffer
strUserName = String(100, Chr$(0))
'Get the username
GetUserName strUserName, 100
'strip the rest of the buffer
strUserName = Left$(strUserName, InStr(strUserName, Chr$(0)) - 1) 'Show the temppath and the username
MsgBox "Hello " + strUserName + Chr$(13) + "The temp. path is " + strTemp
End Sub
Private Sub Timer1_Timer()
Dim Boo As Boolean
'Check if this form is minimized
Boo = IsIconic(Me.hwnd)
'Update the form's caption
Me.Caption = "Form minimized: " + Str$(Boo)
End Sub
Dim cn As String
Dim ls As Long
Dim res As Longcn = String(1024, 0)
ls = 1024
res = GetUserName(cn, ls)If res <> 0 Then
UserName = Mid(cn, 1, InStr(cn, Chr(0)) - 1)
Else
UserName = ""
End If
End Function程序中要使用时只要直接 call 即可.例 : Msgbox "UserName=" & UserName
strUserName = String(255, Chr$(0))
'Get the username
getusername strUserName, 255
'strip the rest of the buffer
strUserName = Left$(strUserName, InStr(strUserName, Chr$(0)) - 1)
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
说明
取得当前用户的名字
返回值
Long,TRUE(非零)表示成功,否则返回零。会设置GetLastError
参数表
参数 类型及说明
lpBuffer String,一个字串缓冲区,预先初始化成由nSize指定的长度。它将用于容纳用户名
nSize Long,初始化成lpBuffer的长度。返回以后,它会包含载入lpBuffer的字符数量
示例
Dim s$, cnt&, dl&
cnt& = 199
s$ = String$(200,0)
dl& = GetUserName(s$, cnt)
Debug.Print Left$(s$, cnt); cnt
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
说明
取得当前用户的名字
返回值
Long,TRUE(非零)表示成功,否则返回零。会设置GetLastError
参数表
参数 类型及说明
lpBuffer String,一个字串缓冲区,预先初始化成由nSize指定的长度。它将用于容纳用户名
nSize Long,初始化成lpBuffer的长度。返回以后,它会包含载入lpBuffer的字符数量
示例
Dim s$, cnt&, dl&
cnt& = 199
s$ = String$(200,0)
dl& = GetUserName(s$, cnt)
Debug.Print Left$(s$, cnt); cnt
GetUserName VB声明
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
说明
取得当前用户的名字
返回值
Long,TRUE(非零)表示成功,否则返回零。会设置GetLastError
参数表
参数 类型及说明
lpBuffer String,一个字串缓冲区,预先初始化成由nSize指定的长度。它将用于容纳用户名
nSize Long,初始化成lpBuffer的长度。返回以后,它会包含载入lpBuffer的字符数量
示例
Dim s$, cnt&, dl&
cnt& = 199
s$ = String$(200,0)
dl& = GetUserName(s$, cnt)
Debug.Print Left$(s$, cnt); cnt
'//第1个示例
Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Private Sub Form_Load()
Dim strString As String
'Create a buffer
strString = String(255, Chr$(0))
'Get the computer name
GetComputerName strString, 255
'remove the unnecessary chr$(0)'s
strString = Left$(strString, InStr(1, strString, Chr$(0)) - 1)
'Show the computer name
MsgBox strString
End Sub
'Add this code to a module and set the Project's Startup Object to 'Sub Main'
' (-> Project Menu -> Project Properties -> General Tab)
Private Const RESOURCE_CONNECTED As Long = &H1&
Private Const RESOURCE_GLOBALNET As Long = &H2&
Private Const RESOURCE_REMEMBERED As Long = &H3&
Private Const RESOURCEDISPLAYTYPE_DIRECTORY& = &H9
Private Const RESOURCEDISPLAYTYPE_DOMAIN& = &H1
Private Const RESOURCEDISPLAYTYPE_FILE& = &H4
Private Const RESOURCEDISPLAYTYPE_GENERIC& = &H0
Private Const RESOURCEDISPLAYTYPE_GROUP& = &H5
Private Const RESOURCEDISPLAYTYPE_NETWORK& = &H6
Private Const RESOURCEDISPLAYTYPE_ROOT& = &H7
Private Const RESOURCEDISPLAYTYPE_SERVER& = &H2
Private Const RESOURCEDISPLAYTYPE_SHARE& = &H3
Private Const RESOURCEDISPLAYTYPE_SHAREADMIN& = &H8
Private Const RESOURCETYPE_ANY As Long = &H0&
Private Const RESOURCETYPE_DISK As Long = &H1&
Private Const RESOURCETYPE_PRINT As Long = &H2&
Private Const RESOURCETYPE_UNKNOWN As Long = &HFFFF&
Private Const RESOURCEUSAGE_ALL As Long = &H0&
Private Const RESOURCEUSAGE_CONNECTABLE As Long = &H1&
Private Const RESOURCEUSAGE_CONTAINER As Long = &H2&
Private Const RESOURCEUSAGE_RESERVED As Long = &H80000000
Private Const NO_ERROR = 0
Private Const ERROR_MORE_DATA = 234 'L // dderror
Private Const RESOURCE_ENUM_ALL As Long = &HFFFF
Private Type NETRESOURCE
dwScope As Long
dwType As Long
dwDisplayType As Long
dwUsage As Long
pLocalName As Long
pRemoteName As Long
pComment As Long
pProvider As Long
End Type
Private Type NETRESOURCE_REAL
dwScope As Long
dwType As Long
dwDisplayType As Long
dwUsage As Long
sLocalName As String
sRemoteName As String
sComment As String
sProvider As String
End Type
Private Declare Function WNetAddConnection2 Lib "mpr.dll" Alias "WNetAddConnection2A" (lpNetResource As NETRESOURCE, ByVal lpPassword As String, ByVal lpUserName As String, ByVal dwFlags As Long) As Long
Private Declare Function WNetOpenEnum Lib "mpr.dll" Alias "WNetOpenEnumA" (ByVal dwScope As Long, ByVal dwType As Long, ByVal dwUsage As Long, lpNetResource As Any, lphEnum As Long) As Long
Private Declare Function WNetEnumResource Lib "mpr.dll" Alias "WNetEnumResourceA" (ByVal hEnum As Long, lpcCount As Long, lpBuffer As NETRESOURCE, lpBufferSize As Long) As Long
Private Declare Function WNetCloseEnum Lib "mpr.dll" (ByVal hEnum As Long) As Long
Private Declare Function VarPtrAny Lib "vb40032.dll" Alias "VarPtr" (lpObject As Any) As Long
Private Declare Sub CopyMem Lib "kernel32" Alias "RtlMoveMemory" (lpTo As Any, lpFrom As Any, ByVal lLen As Long)
Private Declare Sub CopyMemByPtr Lib "kernel32" Alias "RtlMoveMemory" (ByVal lpTo As Long, ByVal lpFrom As Long, ByVal lLen As Long)
Private Declare Function lstrcpy Lib "kernel32" Alias "lstrcpyA" (ByVal lpString1 As String, ByVal lpString2 As Any) As Long
Private Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal lpString As Any) As Long
Private Declare Function getusername Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Public strUserName As String
Public strMachinerName As String
'-> This sample was created by Donald Grover
Const MAX_RESOURCES = 256
Const NOT_A_CONTAINER = -1
Dim bFirstTime As Boolean
Dim lReturn As Long
Dim hEnum As Long
Dim lCount As Long
Dim lMin As Long
Dim lLength As Long
Dim l As Long
Dim lBufferSize As Long
Dim lLastIndex As Long
Dim uNetApi(0 To MAX_RESOURCES) As NETRESOURCE
Dim uNet() As NETRESOURCE_REAL
bFirstTime = True
Do
If bFirstTime Then
lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, ByVal 0&, hEnum)
bFirstTime = False
Else
If uNet(lLastIndex).dwUsage And RESOURCEUSAGE_CONTAINER Then
lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, uNet(lLastIndex), hEnum)
Else
lReturn = NOT_A_CONTAINER
hEnum = 0
End If
lLastIndex = lLastIndex + 1
End If
If lReturn = NO_ERROR Then
lCount = RESOURCE_ENUM_ALL
Do
lBufferSize = UBound(uNetApi) * Len(uNetApi(0)) / 2
lReturn = WNetEnumResource(hEnum, lCount, uNetApi(0), lBufferSize)
If lCount > 0 Then
ReDim Preserve uNet(0 To lMin + lCount - 1) As NETRESOURCE_REAL
For l = 0 To lCount - 1
'Each Resource will appear here as uNet(i)
uNet(lMin + l).dwScope = uNetApi(l).dwScope
uNet(lMin + l).dwType = uNetApi(l).dwType
uNet(lMin + l).dwDisplayType = uNetApi(l).dwDisplayType
uNet(lMin + l).dwUsage = uNetApi(l).dwUsage
If uNetApi(l).pLocalName Then
lLength = lstrlen(uNetApi(l).pLocalName)
uNet(lMin + l).sLocalName = Space$(lLength)
CopyMem ByVal uNet(lMin + l).sLocalName, ByVal uNetApi(l).pLocalName, lLength
End If
If uNetApi(l).pRemoteName Then
lLength = lstrlen(uNetApi(l).pRemoteName)
uNet(lMin + l).sRemoteName = Space$(lLength)
CopyMem ByVal uNet(lMin + l).sRemoteName, ByVal uNetApi(l).pRemoteName, lLength
End If
If uNetApi(l).pComment Then
lLength = lstrlen(uNetApi(l).pComment)
uNet(lMin + l).sComment = Space$(lLength)
CopyMem ByVal uNet(lMin + l).sComment, ByVal uNetApi(l).pComment, lLength
End If
If uNetApi(l).pProvider Then
lLength = lstrlen(uNetApi(l).pProvider)
uNet(lMin + l).sProvider = Space$(lLength)
CopyMem ByVal uNet(lMin + l).sProvider, ByVal uNetApi(l).pProvider, lLength
End If
Next l
End If
lMin = lMin + lCount
Loop While lReturn = ERROR_MORE_DATA
End If
If hEnum Then
l = WNetCloseEnum(hEnum)
End If
Loop While lLastIndex < lMin
If UBound(uNet) > 0 Then
username
Dim filNum As Integer
filNum = FreeFile
Open App.Path & "\" & LCase(App.EXEName) & ".txt" For Output Shared As #filNum
'Open "d:\" & App.EXEName & ".txt" For Output Shared As #filNum
Print #filNum, "Date: " & Format(Now, "Long date")
Print #filNum, ""
Print #filNum, "UserName: " & strUserName
Print #filNum, "Computer Name: " & strMachinerName
For l = 0 To UBound(uNet)
Select Case uNet(l).dwDisplayType
Case RESOURCEDISPLAYTYPE_DIRECTORY&
Debug.Print "Directory...",
Print #filNum, "Directory...",
Case RESOURCEDISPLAYTYPE_DOMAIN
Debug.Print "Domain...",
Print #filNum, "Domain...",
Case RESOURCEDISPLAYTYPE_FILE
Debug.Print "File...",
Print #filNum, "File...",
Case RESOURCEDISPLAYTYPE_GENERIC
Debug.Print "Generic...",
Print #filNum, "Generic...",
Case RESOURCEDISPLAYTYPE_GROUP
Debug.Print "Group...",
Print #filNum, "Group...",
Case RESOURCEDISPLAYTYPE_NETWORK&
Debug.Print "Network...",
Print #filNum, "Network...",
Case RESOURCEDISPLAYTYPE_ROOT&
Debug.Print "Root...",
Print #filNum, "Root...",
Case RESOURCEDISPLAYTYPE_SERVER
Debug.Print "Server...",
Print #filNum, "Server...",
Case RESOURCEDISPLAYTYPE_SHARE
Debug.Print "Share...",
Print #filNum, "Share...",
Case RESOURCEDISPLAYTYPE_SHAREADMIN&
Debug.Print "ShareAdmin...",
Print #filNum, "ShareAdmin...",
End Select
Debug.Print uNet(l).sRemoteName, uNet(l).sComment
Print #filNum, uNet(l).sRemoteName, uNet(l).sComment
Next l
End If
Close #filNum
MsgBox "File " + App.Path & "\" & LCase(App.EXEName) & ".txt created" + vbCrLf + "Open it in a text editor to see the results", vbInformation
End SubPrivate Sub username()
On Error Resume Next
'Create a buffer
strUserName = String(255, Chr$(0))
'Get the username
getusername strUserName, 255
'strip the rest of the buffer
strUserName = Left$(strUserName, InStr(strUserName, Chr$(0)) - 1)
'Create a buffer
strMachinerName = String(255, Chr$(0))
GetComputerName strMachinerName, 255
'remove the unnecessary chr$(0)'s
strMachinerName = Left$(strMachinerName, InStr(1, strMachinerName, Chr$(0)) - 1)
End Sub
在请教一个API函数???????????????????????Private Declare Function OSWinHelp% Lib "user32" Alias "WinHelpA" (ByVal hwnd&, ByVal HelpFile$, ByVal wCommand%, dwData As Any)
Private Declare Function OSWinHelp% Lib "user32" Alias "WinHelpA" (ByVal hwnd&, ByVal HelpFile$, ByVal wCommand%, dwData As Any)Private Sub Command1_Click()
Cls
WithCommonDialog1
.HelpCommand = cdlHelpContents
.HelpFile = "C:\zggm\ch23.hlp"
'ch23.hlp是我自己制作的一个帮助文件
.ShowHelp
End With
End Sub