'It's important that this a `Class` and NOT a `Structure`, orelse it will cause VS to crash.The birth of LFW saw fashion activists flung onto an international platform. Public Const ComCtl32 As String = "comctl32.dll" Public Const kernel32 As String = "kernel32.dll" Public Const user32 As String = "user32.dll" ("B77A5C561934E089"))įriend Shared Function CallNextHookEx(ByVal hhk As IntPtr, ByVal nCode As Integer, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtrįriend Shared Function GetWindowThreadProcessId(ByVal hWnd As IntPtr, ByRef processId As UInteger) As UIntegerįriend Shared Function SetWindowsHookEx(ByVal idHook As Integer, ByVal lpfn As HookProc, ByVal hmod As IntPtr, ByVal dwThreadId As Integer) As IntPtrįriend Shared Function UnhookWindowsHookEx(ByVal hhk As IntPtr) As Boolean NativeMethods.m_invokable = New Boolean?((Not Is Nothing) AndAlso. If (Not NativeMethods.m_invokable.HasValue) Thenĭim assembly As = NativeMethods.Assembly Public Shared ReadOnly Property Invokable() As Boolean NativeMethods.m_assembly = GetType(Integer).Assembly If (NativeMethods.m_assembly Is Nothing) Then Public Shared ReadOnly Property Assembly() As Win32 namespace Friend NotInheritable Class NativeMethods If (Me._callWndProcHandle IntPtr.Zero) Then HHook = (Win32.WH.CALLWNDPROC, proc, IntPtr.Zero, threadID) Me._callWndProcRoot = GCHandle.Alloc(proc) If (Me._callWndProcHandle = IntPtr.Zero) Thenĭim threadID As Integer = ()ĭim proc As New Win32.HookProc(AddressOf Me.CallWnd32ProcCallback) Return (IntPtr.Zero, nCode, wParam, lParam) Marshal.StructureToPtr(cwp, lParam, True) If ((nCode >= 0) AndAlso (lParam IntPtr.Zero)) Thenĭim cwp As Win32.CWPSTRUCT = New Win32.CWPSTRUCT() Private Function CallWnd32ProcCallback(ByVal nCode As Integer, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr 'TODO: WinCE = SetWindowLong(hWnd, GWL_WNDPROC, WNDPROC)ĮlseIf () Then Note that I've separated the native calls into two namespaces, Win32 and WinCE. Private windowProcDelegate As Win32.WindowProcįinally! I solved it! By using SetWindowsHookEx and WH_CALLWNDPROC I can now, at least, track the window messages. Protected Overridable Sub WndProc(ByRef m As ) (Me.windowProcHWnd,, Me.windowProcHandle) Return (Me.m_borderStyle )ĭim style As Win32.WS = DirectCast(CUInt((hWnd, )), Win32.WS)ĭim exStyle As Win32.WS_EX = DirectCast(CUInt((hWnd, )), Win32.WS_EX)ĮxStyle = (exStyle And Not Win32.WS_EX.CLIENTEDGE)ĮxStyle = (exStyle Or Win32.WS_EX.CLIENTEDGE)Ĭase Private Function ShouldSerializeBorderStyle() As Boolean 'TODO: Uncomment to make Visal Studio crash. Protected Overrides Sub OnParentChanged(ByVal e As System.EventArgs) Protected Overrides Sub OnHandleDestroyed(ByVal e As System.EventArgs) Protected Overrides Sub OnHandleCreated(ByVal e As System.EventArgs) Me.windowProcRoot = GCHandle.Alloc(Me.windowProcDelegate) Me.windowProcDelegate = New Win32.WindowProc(AddressOf Me.Callback) If (Me.windowProcHandle IntPtr.Zero) Then Protected Overrides Sub Dispose(ByVal disposing As Boolean) M.Result = (Me.windowProcHandle, m.HWnd, CUInt(m.Msg), m.WParam, m.LParam) M.Result = (m.HWnd, CUInt(m.Msg), m.WParam, m.LParam) If (Me.windowProcHandle = IntPtr.Zero) Then Private Function Callback(ByVal hWnd As IntPtr, ByVal msg As UInteger, ByVal wparam As IntPtr, ByVal lparam As IntPtr) As IntPtrĭim m As = .Create(hWnd, CInt(msg), wparam, lparam) Public ReadOnly Property IsHandleCreated() As Boolean Public ReadOnly Property IsDisposed() As Boolean Return (((Not Me.Site Is Nothing) AndAlso Me.Site.DesignMode) OrElse StaticMethods.IsDesignMode(MyBase.Parent)) Public ReadOnly Property DesignMode() As Boolean Public Property BorderStyle() As BorderStyle Return coredll.GetWindowLong(hWnd, nIndex)įriend Const DLLNAME As String = "coredll.dll"įriend Const DLLNAME As String = "user32.dll"īoth IsDesignTime and IsRunTime returns correct values.Ĭustom control Public Class SystemControl Return user32.GetWindowLong(hWnd, nIndex) (Example only) Friend Class NativeMethodsįriend Shared ReadOnly Property IsDesignTime() As Booleanįriend Shared ReadOnly Property IsRunTime() As Booleanįriend Shared Function GetWindowLong(ByVal hWnd As IntPtr, ByVal nIndex As Integer) As Integer If I drop the control to a form Visual Studio (2008) crashes. But my problem occurs when trying to implement this at design-time. I've successfully changed the wndproc address in a custom control at run-time.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |