![]() ![]() ![]() IntPtr m_hhook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_MINIMIZEEND, IntPtr. Log.Text = GetActiveWindowTitle() "\r\n" Auto)> Private Shared Function GetWindowTextLength(ByVal hwnd As IntPtr) As Integer End. Public void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime) StringBuilder, ByVal cch As Integer) As Integer End Function. If (GetWindowText(handle, Buff, nChars) > 0) Dim s1 As Stopwatch Stopwatch.StartNew For i As Integer 0 To m - 1 Dim builder As StringBuilder New StringBuilder For x As Integer 0 To 99 builder.Append('abc') Next Next s1.Stop() ' Version 2: use String. StringBuilder Buff = new StringBuilder(nChars) Auto)> Private Shared Function GetWindowText(ByVal hwnd As IntPtr, ByVal lpString As StringBuilder. Imports System.Text Module Module1 Sub Main() Dim m As Integer 100000 ' Version 1: use StringBuilder. ![]() To retrieve the text of a control in another process, send a WMGETTEXT message directly instead of calling GetWindowText. Static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count) However, if the target window is not responding and it belongs to the calling application, GetWindowText will cause the calling application to become unresponsive. Static extern IntPtr GetForegroundWindow() Dim strCaption As String Dim lngLen As Long Dim currentForm As Form Form.ActiveForm Try ' Return length of string. Private const uint EVENT_SYSTEM_FOREGROUND = 3 Private Declare Function GetWindowText Lib 'user32' Alias 'GetWindowTextA' (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long ' Create string filled with null characters. ![]() Private const uint WINEVENT_OUTOFCONTEXT = 0 Appending, replacing and inserting are faster. Public Declare Function GetWindowText Lib 'User32' Alias 'GetWindowText' (ByVal hwnd As Integer, ByVal s As, ByVal nMaxCount As Integer) As Integer and Friend Declare Auto Function GetWindowText Lib 'user32. Static extern IntPtr SetWinEventHook(uint eventMin, uint eventMax, IntPtr hmodWinEventProc, WinEventDelegate lpfnWinEventProc, uint idProcess, uint idThread, uint dwFlags) The StringBuilder class in VB.NET optimizes and improves common String operations. IntPtr m_hhook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, dele, 0, 0, WINEVENT_OUTOFCONTEXT) ĭelegate void WinEventDelegate(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime) C# SetWinEventHook effective usage WinEventDelegate dele = null ĭele = new WinEventDelegate(WinEventProc) ![]()
0 Comments
Leave a Reply. |