[473] | 1 | 'Classes/ActiveBasic/Windows/UI/Control.ab
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| 2 |
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[545] | 3 | #require <Classes/ActiveBasic/Windows/UI/EventArgs.ab>
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[473] | 4 |
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| 5 | Namespace ActiveBasic
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| 6 | Namespace Windows
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| 7 | Namespace UI
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| 8 |
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[542] | 9 | 'Namespace Detail
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| 10 | ' TypeDef PTrackMouseEvent = *Function(ByRef tme As TRACKMOUSEEVENT) As BOOL
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| 11 | 'End Namespace
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| 12 |
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[473] | 13 | Class Control
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[547] | 14 | Inherits WindowHandle
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[473] | 15 | Public
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[547] | 16 |
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[473] | 17 | Sub Control()
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| 18 | End Sub
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| 19 |
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| 20 | Virtual Sub ~Control()
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| 21 | End Sub
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| 22 |
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[542] | 23 | Function Handle() As HWND
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| 24 | Handle = hwnd
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[473] | 25 | End Function
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| 26 |
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| 27 | Static Function FromHWnd(hwnd As HWND) As Control
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| 28 | FromHWnd = Nothing
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[547] | 29 | If _System_IsWindow(hwnd) Then
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[473] | 30 | FromHWnd = FromHWndCore(hwnd)
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| 31 | End If
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| 32 | End Function
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| 33 |
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| 34 | Private
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| 35 | Static Function FromHWndCore(hwnd As HWND) As Control
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[547] | 36 | If _System_GetClassLongPtr(hwnd, GCW_ATOM) = atom Then
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[473] | 37 | Dim gchValue = GetProp(hwnd, PropertyInstance As ULONG_PTR As PCTSTR) As ULONG_PTR
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| 38 | If gchValue <> 0 Then
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| 39 | Dim gch = System.Runtime.InteropServices.GCHandle.FromIntPtr(gchValue)
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| 40 | FromHWndCore = gch.Target As Control
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| 41 | Exit Function
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| 42 | End If
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| 43 | End If
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| 44 | End Function
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| 45 |
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| 46 | '--------------------------------
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[544] | 47 | ' ウィンドウ作成
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[547] | 48 | ' Function Create(
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| 49 | ' parent As HWND,
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| 50 | ' rect As RECT,
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| 51 | ' name As String,
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| 52 | ' style As DWord,
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| 53 | ' exStyle = 0 As DWord,
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| 54 | ' menu = 0 As HMENU) As HWND
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[542] | 55 |
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[473] | 56 | Public
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[547] | 57 | Sub Create()
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[473] | 58 | Dim cs As CREATESTRUCT
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| 59 | cs.hInstance = hInstance
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| 60 | cs.lpszClass = (atom As ULONG_PTR) As LPCTSTR
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| 61 | GetCreateStruct(cs)
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[547] | 62 | createImpl(cs)
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| 63 | End Sub
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[473] | 64 |
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| 65 | Protected
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| 66 | Abstract Sub GetCreateStruct(ByRef cs As CREATESTRUCT)
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| 67 |
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[547] | 68 | Sub createImpl(ByRef cs As CREATESTRUCT)
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[473] | 69 | Imports System.Runtime.InteropServices
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| 70 |
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| 71 | Dim gch = GCHandle.Alloc(This)
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| 72 | TlsSetValue(tlsIndex, GCHandle.ToIntPtr(gch) As VoidPtr)
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| 73 |
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[542] | 74 | StartWndProc()
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| 75 |
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[473] | 76 | With cs
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| 77 | Dim hwnd = CreateWindowEx(.dwExStyle, .lpszClass, .lpszName, .style,
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| 78 | .x, .y, .cx, .cy, .hwndParent, .hMenu, .hInstance, .lpCreateParams)
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[547] | 79 | If hwnd = 0 Then
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| 80 | ActiveBasic.Windows.ThrowByWindowsError(GetLastError())
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| 81 | End If
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[473] | 82 | End With
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[547] | 83 | End Sub
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[473] | 84 |
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| 85 | '--------------------------------
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| 86 | ' ウィンドウプロシージャ
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| 87 | 'Protected
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| 88 | Public
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| 89 | Virtual Function WndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 90 | Dim h = Nothing As MessageEventHandler
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| 91 | Dim b = messageMap.TryGetValue(Hex$(msg), h)
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| 92 | If b Then
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| 93 | If Not IsNothing(h) Then
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| 94 | Dim a = New MessageEventArgs(hwnd, msg, wp, lp)
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| 95 | h(This, a)
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| 96 | WndProc = a.LResult
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| 97 | Exit Function
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| 98 | End If
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| 99 | End If
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| 100 | WndProc = DefWndProc(msg, wp, lp)
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[473] | 101 | End Function
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| 102 |
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| 103 | Virtual Function DefWndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 104 | DefWndProc = DefWindowProc(hwnd, msg, wp, lp)
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[473] | 105 | End Function
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| 106 |
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| 107 | Private
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[544] | 108 | Static Function makeKeysFormMsg(e As MessageEventArgs) As Keys
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[473] | 109 | Dim t As DWord
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[544] | 110 | t = e.WParam And Keys.KeyCode
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[473] | 111 | t Or= (GetKeyState(VK_SHIFT) As Word And &h8000) << 1
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| 112 | t Or= (GetKeyState(VK_CONTROL) As Word And &h8000) << 2
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| 113 | t Or= (GetKeyState(VK_MENU) As Word And &h8000) << 3
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[544] | 114 | makeKeysFormMsg = t As Keys
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[473] | 115 | End Function
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| 116 |
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[544] | 117 | Static Function makeMouseEventFromMsg(e As MessageEventArgs) As MouseEventArgs
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| 118 | Dim wp = e.WParam
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| 119 | Dim lp = e.LParam
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| 120 | makeMouseEventFromMsg = New MouseEventArgs(LOWORD(wp) As MouseButtons, 1, GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 0)
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[542] | 121 | End Function
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[473] | 122 |
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[542] | 123 | /*!
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| 124 | @brief 最初にウィンドウプロシージャが呼ばれるときに実行される関数
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| 125 | ここでは、主なメッセージハンドラの登録を行っている。
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| 126 | @date 2008/07/11
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| 127 | */
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| 128 | Sub StartWndProc()
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[547] | 129 | AddMessageEvent(WM_ERASEBKGND, AddressOf(OnEraseBackground))
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| 130 | Dim md = New MessageEventHandler(AddressOf(OnMouseDownBase))
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[542] | 131 | AddMessageEvent(WM_LBUTTONDOWN, md)
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| 132 | AddMessageEvent(WM_RBUTTONDOWN, md)
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| 133 | AddMessageEvent(WM_MBUTTONDOWN, md)
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| 134 | AddMessageEvent(WM_XBUTTONDOWN, md)
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[547] | 135 | Dim mu = New MessageEventHandler(AddressOf(OnMouseUpBase))
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[542] | 136 | AddMessageEvent(WM_LBUTTONUP, mu)
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| 137 | AddMessageEvent(WM_RBUTTONUP, mu)
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| 138 | AddMessageEvent(WM_MBUTTONUP, mu)
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| 139 | AddMessageEvent(WM_XBUTTONUP, mu)
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[547] | 140 | Dim mb = New MessageEventHandler(AddressOf(OnMouseDblClkBase))
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[542] | 141 | AddMessageEvent(WM_LBUTTONDBLCLK, mu)
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| 142 | AddMessageEvent(WM_RBUTTONDBLCLK, mu)
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| 143 | AddMessageEvent(WM_MBUTTONDBLCLK, mu)
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| 144 | AddMessageEvent(WM_XBUTTONDBLCLK, mu)
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[544] | 145 |
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[547] | 146 | AddMessageEvent(WM_MOUSEMOVE, AddressOf(OnMouseMoveBase))
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| 147 | AddMessageEvent(WM_MOUSELEAVE, AddressOf(OnMouseLeaveBase))
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| 148 | AddMessageEvent(WM_PAINT, AddressOf(OnPaintBase))
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| 149 | AddMessageEvent(WM_KEYDOWN, AddressOf(OnKeyDownBase))
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| 150 | ' AddMessageEvent(WM_CHAR, AddressOf(OnChar))
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| 151 | AddMessageEvent(WM_CREATE, AddressOf(OnCreateBase))
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[542] | 152 | End Sub
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[473] | 153 |
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[542] | 154 | Sub OnEraseBackground(sender As Object, e As MessageEventArgs)
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[547] | 155 | Dim rc = ClientRect
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[542] | 156 | FillRect(e.WParam As HDC, rc, (COLOR_3DFACE + 1) As HBRUSH)
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| 157 | e.LResult = TRUE
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| 158 | End Sub
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[473] | 159 |
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[542] | 160 | Sub OnMouseDownBase(sender As Object, e As MessageEventArgs)
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[544] | 161 | OnMouseDown(makeMouseEventFromMsg(e))
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[542] | 162 | End Sub
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| 163 |
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| 164 | Sub OnMouseUpBase(sender As Object, e As MessageEventArgs)
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[544] | 165 | Dim me = makeMouseEventFromMsg(e)
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[542] | 166 | If doubleClickFired = False Then
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[544] | 167 | ' OnClick(System.EventArgs.Empty)
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[542] | 168 | OnMouseClick(me)
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| 169 | doubleClickFired = False
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| 170 | End If
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| 171 | OnMouseUp(me)
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| 172 | End Sub
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| 173 |
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| 174 | Sub OnMouseDblClkBase(sender As Object, e As MessageEventArgs)
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[544] | 175 | Dim me = makeMouseEventFromMsg(e)
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[542] | 176 | doubleClickFired = True
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| 177 | OnMouseDown(me)
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[544] | 178 | ' OnDoubleClick(System.EventArgs.Empty)
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[542] | 179 | OnMouseDoubleClick(me)
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| 180 | End Sub
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| 181 |
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| 182 | Sub OnMouseMoveBase(sender As Object, e As MessageEventArgs)
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[544] | 183 | Dim me = makeMouseEventFromMsg(e)
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[542] | 184 | If mouseEntered Then
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| 185 | OnMouseMove(me)
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| 186 | Else
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| 187 | mouseEntered = True
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| 188 | OnMouseEnter(me)
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| 189 | End If
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| 190 | End Sub
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| 191 |
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[544] | 192 | Sub OnMouseLeaveBase(sender As Object, e As MessageEventArgs)
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| 193 | Dim me = makeMouseEventFromMsg(e)
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| 194 | OnMouseLeave(me)
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| 195 | mouseEntered = False
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| 196 | End Sub
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| 197 |
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[542] | 198 | Sub OnPaintBase(sender As Object, e As MessageEventArgs)
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| 199 | Dim ps As PAINTSTRUCT
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[547] | 200 | BeginPaint(ps)
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[544] | 201 | Try
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| 202 | OnPaintDC(New PaintDCEventArgs(ps.hdc, ps.rcPaint))
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| 203 | Finally
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[547] | 204 | EndPaint(ps)
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[544] | 205 | End Try
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[542] | 206 | End Sub
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| 207 |
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[544] | 208 | Sub OnKeyDownBase(sender As Object, e As MessageEventArgs)
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| 209 | OnKeyDown(New KeyEventArgs(makeKeysFormMsg(e)))
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| 210 | End Sub
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[542] | 211 |
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[544] | 212 | Sub OnKeyUpBase(sender As Object, e As MessageEventArgs)
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| 213 | OnKeyUp(New KeyEventArgs(makeKeysFormMsg(e)))
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| 214 | End Sub
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| 215 |
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| 216 | ' コメントアウト解除のときはStartWndProcのコメントアウト解除も忘れないこと
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| 217 | ' Sub OnChar(sender As Object, e As MessageEventArgs)
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| 218 | ' OnKeyPress(New KeyPressEventArgs(e.WParam As Char))
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| 219 | ' End Sub
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| 220 |
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| 221 | Sub OnCreateBase(sender As Object, e As MessageEventArgs)
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| 222 | OnCreate(New CreateEventArgs(e.LParam As *CREATESTRUCT))
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| 223 | End Sub
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| 224 |
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[542] | 225 | messageMap As System.Collections.Generic.Dictionary<Object /*DWord*/, MessageEventHandler>
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| 226 |
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| 227 | Public
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[473] | 228 | /*!
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[542] | 229 | @biref メッセージイベントハンドラを登録する。
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[473] | 230 | @date 2007/12/04
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| 231 | */
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[542] | 232 | Sub AddMessageEvent(message As DWord, h As MessageEventHandler)
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| 233 | If Not IsNothing(h) Then
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| 234 | If IsNothing(messageMap) Then
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| 235 | messageMap = New System.Collections.Generic.Dictionary<Object, MessageEventHandler>
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| 236 | End If
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| 237 | Dim msg = Hex$(message)
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| 238 | Dim m = Nothing As MessageEventHandler
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| 239 | If messageMap.TryGetValue(msg, m) Then
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| 240 | messageMap.Item[msg] = m + h
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| 241 | Else
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| 242 | messageMap.Item[msg] = h
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| 243 | End If
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| 244 | End If
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[473] | 245 | End Sub
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| 246 |
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[542] | 247 | /*!
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| 248 | @biref メッセージイベントハンドラ登録を解除する。
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| 249 | @date 2007/12/04
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| 250 | */
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| 251 | Sub RemoveMessageEvent(message As DWord, a As MessageEventHandler)
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| 252 | If Not IsNothing(a) Then
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| 253 | If Not IsNothing(messageMap) Then
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[545] | 254 | Dim msg = Hex$(message)
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[542] | 255 | Dim m = messageMap.Item[msg]
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| 256 | If Not IsNothing(m) Then
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| 257 | messageMap.Item[msg] = m - a
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| 258 | End If
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| 259 | End If
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| 260 | End If
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| 261 | End Sub
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| 262 |
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| 263 | '--------------------------------
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| 264 | ' ウィンドウメッセージ処理
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| 265 |
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| 266 |
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[473] | 267 | '--------
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| 268 | 'イベント
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| 269 |
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| 270 | #include "ControlEvent.sbp"
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| 271 |
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| 272 | '--------------------------------
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[544] | 273 | ' インスタンスメンバ変数
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[473] | 274 | Private
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[542] | 275 | /*!
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| 276 | @brief マウスカーソルがクライアント領域に入っているかどうかのフラグ
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| 277 | 外から中に入ってきたときにMouseEnterイベントを発生させるために用意している。
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| 278 | */
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| 279 | mouseEntered As Boolean
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| 280 | /*!
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| 281 | @brief ダブルクリックが起こったかどうかのフラグ
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| 282 | Click/MouseClickイベントのために用意している。
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| 283 | @date 2008/07/12
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| 284 | */
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| 285 | doubleClickFired As Boolean
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[473] | 286 |
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| 287 | '--------------------------------
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[544] | 288 | ' 初期ウィンドウクラス
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[473] | 289 | Private
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| 290 | Static Function WndProcFirst(hwnd As HWND, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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| 291 | Imports System.Runtime.InteropServices
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| 292 |
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[547] | 293 | Dim rThis = FromHWndCore(hwnd)
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[473] | 294 | If IsNothing(rThis) Then
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| 295 | Dim gchValue = TlsGetValue(tlsIndex) As LONG_PTR
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| 296 | TlsSetValue(tlsIndex, 0)
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| 297 | If gchValue = 0 Then
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| 298 | Goto *InstanceIsNotFound
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| 299 | End If
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| 300 | Dim gch = GCHandle.FromIntPtr(gchValue)
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| 301 | rThis = gch.Target As Control
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| 302 | ' ウィンドウが作られて最初にWndProcFirstが呼ばれたとき
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| 303 |
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| 304 | If IsNothing(rThis) Then
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| 305 | Goto *InstanceIsNotFound
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| 306 | End If
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[542] | 307 | rThis.hwnd = hwnd
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[547] | 308 | rThis.Prop[PropertyInstance] = gchValue As HANDLE
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[473] | 309 | End If
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| 310 | WndProcFirst = rThis.WndProc(msg, wp, lp)
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| 311 | If msg = WM_NCDESTROY Then
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[547] | 312 | Dim gchValue = rThis.Prop(PropertyInstance) As ULONG_PTR
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[473] | 313 | If gchValue <> 0 Then
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[547] | 314 | GCHandle.FromIntPtr(gchValue).Free()
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[473] | 315 | End If
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| 316 | End If
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| 317 |
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| 318 | Exit Function
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| 319 |
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| 320 | *InstanceIsNotFound
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[547] | 321 | OutputDebugString(Ex"ActiveBasic.Windows.UI.Control.WndProcFirst: The attached instance is not found.\r\n")
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[473] | 322 | WndProcFirst = DefWindowProc(hwnd, msg, wp, lp)
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| 323 | End Function
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[542] | 324 |
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[473] | 325 | ' Static Const WM_CONTROL_INVOKE = WM_USER + 0 As DWord
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| 326 | ' Static Const WM_CONTROL_BEGININVOKE = WM_USER + 1 As DWord
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| 327 |
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| 328 | '--------------------------------
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[542] | 329 | ' その他の補助関数
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| 330 | Private
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| 331 | ' Sub tracMouseEvent()
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| 332 | /* If pTrackMouseEvent <> 0 Then
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| 333 | Dim tme As TRACKMOUSEEVENT
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| 334 | With tme
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| 335 | .cbSize = Len(tme)
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| 336 | .dwFlags = TME_HOVER Or TME_LEAVE
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| 337 | .hwndTrack = wnd
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| 338 | .dwHoverTime = HOVER_DEFAULT
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| 339 | End With
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| 340 | pTrackMouseEvent(tme)
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| 341 | End If
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| 342 | */ 'End Sub
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| 343 |
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| 344 | '--------------------------------
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[544] | 345 | ' 初期化終了関連(特にウィンドウクラス)
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[542] | 346 | Private
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[473] | 347 | 'ウィンドウ作成時にウィンドウプロシージャへThisを伝えるためのもの
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| 348 | Static tlsIndex As DWord
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| 349 |
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| 350 | Static hInstance As HINSTANCE
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| 351 | Static atom As ATOM
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[542] | 352 | Static hmodComctl As HMODULE
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| 353 | ' Static pTrackMouseEvent As PTrackMouseEvent
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[473] | 354 |
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| 355 | Static Const WindowClassName = "ActiveBasic.Windows.UI.Control"
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| 356 | Static Const PropertyInstance = 0 As ATOM
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| 357 | Public
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| 358 | Static Sub Initialize(hinst As HINSTANCE)
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| 359 | tlsIndex = TlsAlloc()
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| 360 | hInstance = hinst
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[542] | 361 | ' hmodComctl = LoadLibrary("comctl32.dll")
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| 362 | ' pTrackMouseEvent = GetProcAddress(hmodComctl, ToMBStr("_TrackMouseEvent"))
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[473] | 363 |
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| 364 | Dim PropertyInstanceString = WindowClassName + " " + Hex$(GetCurrentProcessId())
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| 365 | PropertyInstance = GlobalAddAtom(ToTCStr(PropertyInstanceString))
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| 366 |
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| 367 | Dim wcx As WNDCLASSEX
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| 368 | With wcx
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| 369 | .cbSize = Len (wcx)
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| 370 | .style = CS_HREDRAW Or CS_VREDRAW Or CS_DBLCLKS
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| 371 | .lpfnWndProc = AddressOf (WndProcFirst)
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| 372 | .cbClsExtra = 0
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| 373 | .cbWndExtra = 0
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| 374 | .hInstance = hinst
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| 375 | .hIcon = 0
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| 376 | .hCursor = LoadImage(0, MAKEINTRESOURCE(IDC_ARROW), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE Or LR_SHARED) As HCURSOR
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| 377 | .hbrBackground = 0
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| 378 | .lpszMenuName = 0
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| 379 | .lpszClassName = ToTCStr(WindowClassName)
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| 380 | .hIconSm = 0
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| 381 | End With
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| 382 | atom = RegisterClassEx(wcx)
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| 383 | If atom = 0 Then
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| 384 | Dim buf[1023] As TCHAR
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| 385 | wsprintf(buf, Ex"ActiveBasic.Windows.UI.Control.Control: RegisterClasseEx failed. Error code: &h%08X\r\n", GetLastError())
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| 386 | OutputDebugString(buf)
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| 387 | Debug
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| 388 | ExitThread(0)
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| 389 | End If
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| 390 | End Sub
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| 391 |
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| 392 | Static Sub Uninitialize()
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[542] | 393 | If atom <> 0 Then
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| 394 | UnregisterClass(atom As ULONG_PTR As PCSTR, hInstance)
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| 395 | End If
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| 396 | If tlsIndex <> 0 And tlsIndex <> &hffffffff Then
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| 397 | TlsFree(tlsIndex)
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| 398 | End If
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| 399 | ' If hmodComctl <> 0 Then
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| 400 | ' FreeLibrary(hmodComctl)
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| 401 | ' End If
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| 402 | If PropertyInstance <> 0 Then
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| 403 | GlobalDeleteAtom(PropertyInstance)
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| 404 | End If
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[473] | 405 | End Sub
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| 406 |
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| 407 | End Class
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| 408 |
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| 409 | End Namespace 'UI
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| 410 | End Namespace 'Widnows
|
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| 411 | End Namespace 'ActiveBasic
|
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