| 投稿日 | ： 2002/09/02(Mon) 15:13 |
| 投稿者 | ： MS |
| ＵＲＬ | ： |
| タイトル | ： Re: (続)タスクバー「自動的に隠す」の設定/解除 |
Win98で実現する方法をいろいろと模索してみんですが、いい手が見つか
らず、結局、ダイアログ設定の操作手順をコードに置換えてみました。
以下がWin98限定のコードです。
この方法の問題は、ダイアログ設定の終了後、Formがアクティブになり
ません。フォアグラウンドウィンドウのスレッドとインプット状態を
共有する方法でアクティブになると思ったのですが。
回避策をご指導下さい。宜しくお願いします。
' Form Code
Option Explicit
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Type APPBARDATA
cbSize As Long
hwnd As Long
uCallbackMessage As Long
uEdge As Long
rc As RECT
lParam As Long
End Type
Private Declare Function SHAppBarMessage Lib "shell32.dll" _
(ByVal dwMessage As Long, pData As APPBARDATA) As Long
Private Const ABM_GETSTATE = &H4
Private Const ABS_AUTOHIDE = &H1
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 Sub Sleep Lib "kernel32" _
(ByVal dwMilliseconds As Long)
Private Declare Function GetDlgItem Lib "user32" _
(ByVal hDlg As Long, ByVal nIDDlgItem As Long) As Long
' Private Const ID_ALWAYSONTOP = 1101
Private Const ID_AUTOHIDE = 1102
Private Const ID_OK = 1
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
(ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, lParam As Any) As Long
Private Const BM_CLICK = &HF5
Private Const BM_SETCHECK = &HF1
Private Const BST_UNCHECKED = 0
Private Const BST_CHECKED = 1
Private Declare Function GetForegroundWindow Lib "user32" () As Long
Private Declare Function SetForegroundWindow Lib "user32" _
(ByVal hwnd As Long) As Long
Private Declare Function GetWindowThreadProcessId Lib "user32" _
(ByVal hwnd As Long, lpdwProcessId As Long) As Long
Private Declare Function SystemParametersInfo Lib "user32" Alias "SystemParametersInfoA" _
(ByVal uAction As Long, ByVal uParam As Long, _
ByRef lpvParam As Any, ByVal fuWinIni As Long) As Long
Private Const SPI_GETFOREGROUNDLOCKTIMEOUT = 2000
Private Const SPI_SETFOREGROUNDLOCKTIMEOUT = 2001
' Private Const SPIF_UPDATEINIFILE = 1
' Private Const SPIF_SENDWININICHANGE = 2
Private Declare Function AttachThreadInput Lib "user32" _
(ByVal idAttach As Long, ByVal idAttachTo As Long, _
ByVal fAttach As Long) As Long
Private Sub Command1_Click()
Static fChkState As Boolean
fChkState = Not fChkState
Call SetTaskBarAutoHide(fChkState)
DoEvents
Call SetForegroundWnd(Me.hwnd)
End Sub
Private Sub SetTaskBarAutoHide(ByVal fChkState As Boolean)
Dim hwndTask As Long
Dim pbd As APPBARDATA
Dim fIsAutoHide As Boolean
Const sDlgTitle As String = "タスク バーのプロパティ" ' Win98
Dim oShell As Object
Dim hwndDlg As Long
Dim hwndChild As Long
Dim hwndChk As Long
' [自動的に隠す]の状態を得る
hwndTask = FindWindowEx(0, 0, "Shell_TrayWnd", vbNullString)
pbd.cbSize = Len(pbd)
pbd.hwnd = hwndTask
fIsAutoHide = CBool(SHAppBarMessage(ABM_GETSTATE, pbd) And ABS_AUTOHIDE)
If (fIsAutoHide And Not fChkState) Or (Not fIsAutoHide And fChkState) Then
Call SetForegroundWindow(hwndTask)
' [タスク バーのプロパティ]ダイアログの起動
Set oShell = CreateObject("Shell.Application")
oShell.TrayProperties
Set oShell = Nothing
' ダイアログ表示まで待機
Do
hwndDlg = FindWindowEx(0, 0, "#32770", sDlgTitle)
Loop While (hwndDlg = 0)
' [自動的に隠す]チェックボックスの操作
Call Sleep(100) ' 念のため
hwndChild = FindWindowEx(hwndDlg, 0, "#32770", vbNullString)
hwndChk = GetDlgItem(hwndChild, ID_AUTOHIDE)
If (fIsAutoHide And Not fChkState) Then ' Check OFF
Call SendMessage(hwndChk, BM_SETCHECK, BST_UNCHECKED, ByVal 0&)
ElseIf (Not fIsAutoHide And fChkState) Then ' Check ON
Call SendMessage(hwndChk, BM_SETCHECK, BST_CHECKED, ByVal 0&)
End If
' [OK]ボタンでダイアログを閉じる
Call SendMessage(GetDlgItem(hwndDlg, ID_OK), BM_CLICK, 0, ByVal 0&)
End If
End Sub
Private Sub SetForegroundWnd(ByVal hwnd As Long)
Dim dwCurThreadID As Long
Dim dwThreadID As Long
Dim dwLockTime As Long
dwCurThreadID = GetWindowThreadProcessId(GetForegroundWindow(), ByVal 0)
dwThreadID = GetWindowThreadProcessId(hwnd, ByVal 0)
If (dwThreadID <> dwCurThreadID) Then
Call AttachThreadInput(dwThreadID, dwCurThreadID, 1)
Call SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0, dwLockTime, 0)
Call SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, 0)
Call SetForegroundWindow(hwnd)
Call SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, dwLockTime, 0)
Call AttachThreadInput(dwThreadID, dwCurThreadID, 0)
Else: Call SetForegroundWindow(hwnd)
End If
End Sub