ZYL910 Come in!

[kwxx]

Class:
MarcomediaFlashPlayerActiveX

大小写严格吗？

[zyl910]

你要的资料：

GetClassName

VB声明
Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
说明
为指定的窗口取得类名
返回值
Long，以字节数表示的类名长度；排除最后的空中止字符。零表示出错。会设置GetLastError
参数表
参数 类型及说明
hwnd Long，欲获得类名的那个窗口的句柄
lpClassName String，随同类名载入的缓冲区。预先至少必须分配nMaxCount+1个字符
nMaxCount Long，由lpClassName提供的缓冲区长度


FindWindowEx

VB声明
Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
说明
在窗口列表中寻找与指定条件相符的第一个子窗口
返回值
Long，找到的窗口的句柄。如未找到相符窗口，则返回零。会设置GetLastError
参数表
参数 类型及说明
hWnd1 Long，在其中查找子的父窗口。如设为零，表示使用桌面窗口（通常说的顶级窗口都被认为是桌面的子窗口，所以也会对它们进行查找）
hWnd2 Long，从这个窗口后开始查找。这样便可利用对FindWindowEx的多次调用找到符合条件的所有子窗口。如设为零，表示从第一个子窗口开始搜索
lpsz1 String，欲搜索的窗体名。零表示忽略
lpsz2 String，欲搜索的类名。零表示忽略

[zyl910]

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long
Const SW_SHOWNORMAL = 1
Const WM_CLOSE = &H10
Const gcClassnameMSWord = "OpusApp"
Const gcClassnameMSExcel = "XLMAIN"
Const gcClassnameMSIExplorer = "IEFrame"
Const gcClassnameMSVBasic = "wndclass_desked_gsk"
Const gcClassnameNotePad = "Notepad"
Const gcClassnameMyVBApp = "ThunderForm"
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [e-mail]
Dim WinWnd As Long, Ret As String, RetVal As Long, lpClassName As String
'Ask for a Window title
Ret = InputBox("Enter the exact window title:" + Chr$(13) + Chr$(10) + "Note: must be an exact match")
'Search the window
WinWnd = FindWindow(vbNullString, Ret)
If WinWnd = 0 Then MsgBox "Couldn't find the window ...": Exit Sub
'Show the window
ShowWindow WinWnd, SW_SHOWNORMAL
'Create a buffer
lpClassName = Space(256)
'retrieve the class name
RetVal = GetClassName(WinWnd, lpClassName, 256)
'Show the classname
MsgBox "Classname: " + Left$(lpClassName, RetVal)
'Post a message to the window to close itself
PostMessage WinWnd, WM_CLOSE, 0&, 0&
End Sub

[zyl910]

Const WS_CHILD = &H40000000
Const WM_LBUTTONDOWN = &H201
Const WM_LBUTTONUP = &H202
Const SW_HIDE = 0
Const SW_NORMAL = 1
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long
Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long
Private Declare Function CreateWindowEx Lib "user32" Alias "CreateWindowExA" (ByVal dwExStyle As Long, ByVal lpClassName As String, ByVal lpWindowName As String, ByVal dwStyle As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hWndParent As Long, ByVal hMenu As Long, ByVal hInstance As Long, lpParam As Any) As Long
Private Declare Function DestroyWindow Lib "user32" (ByVal hwnd As Long) As Long
Dim tWnd As Long, bWnd As Long, ncWnd As Long
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [e-mail]
Dim R As RECT
'Get the taskbar's window handle
tWnd = FindWindow("Shell_TrayWnd", vbNullString)
'Get the start-button's window handle
bWnd = FindWindowEx(tWnd, ByVal 0&, "BUTTON", vbNullString)
'Get the start button's position
GetWindowRect bWnd, R
'Create a new button
ncWnd = CreateWindowEx(ByVal 0&, "BUTTON", "Hello !", WS_CHILD, 0, 0, R.Right - R.Left, R.Bottom - R.Top, tWnd, ByVal 0&, App.hInstance, ByVal 0&)
'Show our button
ShowWindow ncWnd, SW_NORMAL
'Hide the start button
ShowWindow bWnd, SW_HIDE
End Sub
Private Sub Form_Unload(Cancel As Integer)
'show the start button
ShowWindow bWnd, SW_NORMAL
'destroy our button
DestroyWindow ncWnd
End Sub

[kwxx]

没有查找控件HWND的API?

[zyl910]

Option Explicit
Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long

Private Declare Function GetWindow Lib "user32" (ByVal hWnd As Long, ByVal wCmd As Long) As Long
Private Const GW_HWNDFIRST = 0 '为一个源子窗口寻找第一个兄弟（同级）窗口，或寻找第一个顶级窗口
Private Const GW_HWNDLAST = 1 '为一个源子窗口寻找最后一个兄弟（同级）窗口，或寻找最后一个顶级窗口
Private Const GW_HWNDNEXT = 2 '为源窗口寻找下一个兄弟窗口
Private Const GW_HWNDPREV = 3 '为源窗口寻找前一个兄弟窗口
Private Const GW_OWNER = 4 '寻找窗口的所有者
Private Const GW_CHILD = 5 '寻找源窗口的第一个子窗口

Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hWnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long

Public Function GetClassNameStr(hWnd As Long) As String
Dim TempLng As Long
Dim TempStr As String
Dim Rc As Long

TempLng = 260
TempStr = Space(TempLng)

Rc = GetClassName(hWnd, TempStr, TempLng)

GetClassNameStr = StrConv(LeftB$(StrConv(TempStr, vbFromUnicode), Rc), vbUnicode)

End Function

Public Function FindWnd(ByVal PhWnd As Long, ClassStr As String) As Long
Dim TemphWnd As Long

TemphWnd = GetWindow(PhWnd, GW_CHILD)
Do
If GetClassNameStr(TemphWnd) = ClassStr Then Exit Do
Loop While TemphWnd = GetWindow(PhWnd, GW_HWNDNEXT)

FindWnd = TemphWnd

End Function

Private Sub Form_Load()
Dim TemphWnd As Long

TemphWnd = FindWnd(Me.hWnd, "MarcomediaFlashPlayerActiveX")
MsgBox TemphWnd & vbCrLf & GetClassNameStr(TemphWnd)

End Sub