/// <summary>
/// 初始化实例
/// </summary>
/// <param name="className">查找的目标窗口(子项所在的主窗口)类名</param>
/// <param name="windowTitle">查找的目标窗口(子项所在的主窗口)标题</param>
/// <param name="destinationAccName">查找的目标子项的AccName的值</param>
public MSAATextReader(string className, string windowTitle, string destinationAccName)
{
//获取指定窗口句柄
IntPtr hwnd = Win32.FindWindowEx(IntPtr.Zero, IntPtr.Zero, className, windowTitle);
Guid guidCOM = new Guid(0x618736E0, 0x3C3D, 0x11CF, 0x81, 0xC, 0x0, 0xAA, 0x0, 0x38, 0x9B, 0x71);
Accessibility.IAccessible IACurrent = null;
/*
* 通过指定的窗口句柄，获取IAccessible接口指针
* 调用AccessibleObjectFromWindow
* 获得句柄hwndCurrent指向的鼠标当前窗口所在的顶级窗口，放入IACurrent，供访问者使用
*/
Win32.AccessibleObjectFromWindow(hwnd, (int)Win32.OBJID_CLIENT, ref guidCOM, ref IACurrent);
if (IACurrent == null)
{
throw new NullReferenceException(string.Format("找不到指定窗口名为\"{0}\"的窗口", windowTitle));
}
//当前句柄窗口包含的直接下级子项个数
int childCount = IACurrent.accChildCount;
//所有子窗口集合
object[] windowChildren = new object[childCount];
/*
* 获得当前顶级窗口（特别注意不一定是hwndCurrent所指向的窗口）的第一层子项
*/
Win32.AccessibleChildren(IACurrent, 0, childCount, windowChildren, out _pcObtained);
//获取消息窗口对应的IAccessible类型引用
msgContentWindow = GetMessageContentWindow(windowChildren, destinationAccName);
}
static void getAccessibleObjectFromWindow(IntPtr hwnd, ref Accessibility.IAccessible acc)
{
Guid guid = new Guid("{618736e0-3c3d-11cf-810c-00aa00389b71}"); // IAccessibleobject obj = null;
object tmpObj = null;
int returnVal = AccessibleObjectFromWindow(hwnd, (uint)0x00000000, ref guid, ref tmpObj);
acc = (Accessibility.IAccessible)tmpObj;
return;
}
private void GetAccessibleObjects(System.IntPtr imWindowHwnd, out IAccessible inputBox)
{
Guid guidCOM = new Guid(0x618736E0, 0x3C3D, 0x11CF, 0x81, 0xC, 0x0, 0xAA, 0x0, 0x38, 0x9B, 0x71);
Accessibility.IAccessible IACurrent = null;
Win32.AccessibleObjectFromWindow(imWindowHwnd, (int)Win32.OBJID_CLIENT, ref guidCOM, ref IACurrent);
IACurrent = (IAccessible)IACurrent.accParent;
inputBox = null;
inputBox = GetMsgChild(IACurrent);
}
private void StartGetAccessibleObjects(System.IntPtr imWindowHwnd, out object FindBox, out IAccessible FindBoxParent, string SearchTile, out XmlDocument doc)
{
Guid guidCOM = new Guid(0x618736E0, 0x3C3D, 0x11CF, 0x81, 0xC, 0x0, 0xAA, 0x0, 0x38, 0x9B, 0x71);
Accessibility.IAccessible IACurrent = null;
doc = new XmlDocument();
FindBox = null;
FindBoxParent = IACurrent;
Win32.AccessibleObjectFromWindow(imWindowHwnd, (int)Win32.OBJID_CLIENT, ref guidCOM, ref IACurrent);
if (IACurrent == null)
{
return;
}
IACurrent = (IAccessible)IACurrent.accParent;
FindBox = null;
object[] CHILDS = GetAccessibleChildren(IACurrent);
doc.LoadXml("<top></top>");
Int32 index = 1;
foreach (var CHILDITEM in CHILDS)
{
XmlElement subwin = doc.CreateElement("win");
doc.DocumentElement.AppendChild(subwin);
subwin.SetAttribute("index", index.ToString());
if (CHILDITEM.GetType().ToString().ToUpper().Contains("INT"))
{
subwin.SetAttribute("name", ((IAccessible)IACurrent).get_accName(CHILDITEM));
subwin.SetAttribute("value", ((IAccessible)IACurrent).get_accValue(CHILDITEM), SearchTile);
if (((IAccessible)IACurrent).get_accName(CHILDITEM) == SearchTile)
{
FindBox = (CHILDITEM);
FindBoxParent = IACurrent;
return;
}
}
else
{
subwin.SetAttribute("name", ((IAccessible)CHILDITEM).get_accName(Win32.CHILDID_SELF));
subwin.SetAttribute("value", ((IAccessible)CHILDITEM).get_accValue(Win32.CHILDID_SELF), SearchTile);
if (((IAccessible)CHILDITEM).get_accName(Win32.CHILDID_SELF) == SearchTile)
{
FindBox = ((IAccessible)CHILDITEM);
FindBoxParent = IACurrent;
return;
}
}
index += 1;
if (FindBox == null)
{
RepeatGetAccessibleObjects(((IAccessible)CHILDITEM), 1, subwin, SearchTile, doc, ref FindBox, ref FindBoxParent);
}
}
//int childCount = IACurrent.accChildCount;
//object[] windowChildren = new object[childCount];
//int pcObtained;
//Win32.AccessibleChildren(IACurrent, 0, childCount, windowChildren, out pcObtained);
//foreach (IAccessible child in windowChildren)
//{
// if (child.get_accName(Win32.CHILDID_SELF) == _winTitle)
// {
// inputBox = GetAccessibleChild(child, new int[] { 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 3, 0 });
// break;
// }
//}
}
public static extern int AccessibleChildren(
Accessibility.IAccessible paccContainer,
int iChildStart,
int cChildren,
[Out] object[] rgvarChildren,
out int pcObtained);
internal static extern int AccessibleChildren(Accessibility.IAccessible paccContainer, int iChildStart, int cChildren, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2), In, Out] object[] rgvarChildren, out int pcObtained);
static int findIexplrTab(System.Diagnostics.Process iexplrProc, string findTxt, bool activateTab)
{
// [ https://stackoverflow.com/questions/3820228/setting-focus-to-already-opened-tab-of-internet-explorer-from-c-sharp-program-us ]
IntPtr hWndDirectUI = GetDirectUIHWND(iexplrProc.MainWindowHandle); if (hWndDirectUI == IntPtr.Zero)
{
return(int.MinValue);
}
// [ https://msdn.microsoft.com/en-us/library/system.windows.forms.accessibleobject(v=vs.110).aspx ]
// [ https://www.codeproject.com/Articles/38906/UI-Automation-Using-Microsoft-Active-Accessibility ]
Accessibility.IAccessible objAccessible = null; getAccessibleObjectFromWindow(hWndDirectUI, ref objAccessible);
if (objAccessible == null)
{
Console.WriteLine("ERROR: getAccessibleObjectFromWindow()");
return(int.MinValue);
}
bool foundTab = false; int tabIndex = 0;
foreach (IAccessible accessor in getAccessibleChildren(objAccessible))
{
foreach (IAccessible accChild in getAccessibleChildren(accessor))
{
IAccessible[] accTabs = getAccessibleChildren(accChild);
for (int i = 0; i < accTabs.Length - 1; i++)
{
tabIndex++; IAccessible accTab = accTabs[i];
if (findTxt.Length == 0)
{
if ((int)accTab.get_accState(0) == 0x200002) // 2097154
{
printIexplrTabInfo(iexplrProc, accTab, tabIndex, i);
Console.WriteLine("[activeTab:{0}]", tabIndex);
return(tabIndex);
}
}
else if (findTxt.Length > 0 && accTab.accDescription[0].Contains(findTxt))
{
foundTab = true;
printIexplrTabInfo(iexplrProc, accTab, tabIndex, i);
Console.WriteLine("[foundTab:{0}]", tabIndex);
if (activateTab && (int)accTab.get_accState(0) != 0x200002)
{
accTab.accDoDefaultAction(0); // 0==CHILDID_SELF ==> !!activate this tab!!
System.Threading.Thread.Sleep(200);
if ((int)accTab.get_accState(0) == 0x200002)
{
Console.WriteLine("[activateTab:success]");
}
else
{
Console.WriteLine("[activateTab:failed]");
}
}
return(tabIndex);
}
} // accTabs
} // accChild
} // accessor
return(-tabIndex);
}