2015.4.25利用UIAutomation 替代API函數，解決了ListView無法讀資料的難題，順便實現了滑鼠類比滾輪

標籤：

UIAutomation比API的優點是類似於訊息處理機制，而不是主要靠類比滑鼠鍵盤發送訊息

首先添加引用UIAutomationClient和UIAutomationTypes，在安裝.net3.5的電腦上可用。低版本的VS可以直接引用dll。

using System.Windows.Automation;

 

//先用傳統方法找到hwnd，用UI也能找到，新項目應統一到UI

IntPtr leftview = API.FindWindowEx(wd0, 0, "SysListView32", "CFQS");

IntPtr rightview = API.FindWindowEx(wd0, 0, "SysListView32", "List2");

if (leftview == IntPtr.Zero || rightview == IntPtr.Zero) return;

 

AutomationElement el = AutomationElement.FromHandle(leftview); //左側view

AutomationElement er = AutomationElement.FromHandle(rightview); //右側view

 

PropertyCondition condition_bk = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.DataItem); //尋找子視窗的條件 同樣是ListViewItem,對左邊的只能用ControlType.DataItem，右邊的用ControlType.ListItem

AutomationElementCollection bks = el.FindAll(TreeScope.Children, condition_bk); //獲得所有滿足條件子視窗的集合

//還有一種遍曆子視窗的方法 用TreeWalker

//AutomationElement el = AutomationElement.FromHandle(leftview);

//TreeWalker walker = TreeWalker.ContentViewWalker;

//for (AutomationElement child = walker.GetFirstChild(el); child != null; child = walker.GetNextSibling(child))                    //{

//    string name=child.Current.Name

//}

 

API.mouse_event((int)(MouseEventFlags.Wheel | MouseEventFlags.Absolute), 0, 0, -380, IntPtr.Zero); //讓捲軸下滾，僅為視覺效果，不要也行      

 

SelectionItemPattern selPattern = (SelectionItemPattern)item.GetCurrentPattern(SelectionItemPattern.Pattern);

selPattern.Select(); //選擇該板塊 //實現ListView內部元素選擇

 

// item.Current.Name 可取出Listview內部元素內容

//PropertyCondition condition = new PropertyCondition(AutomationElement.IsEnabledProperty, true); //可通用所有非禁用項作為類型

 

2016.9.2補充

往控制項中輸入內容

AutomationElement element = AutomationElement.FromHandle(edbox);

object valuePattern = null;

if (element.TryGetCurrentPattern(ValuePattern.Pattern, out valuePattern)) //是否支援直接寫入

{

                // Set focus for input functionality and begin.

                element.SetFocus();

                ((ValuePattern)valuePattern).SetValue(fullpath);

}

else //否則類比鍵入

{

                // Set focus for input functionality and begin.

                element.SetFocus();

 

                // Pause before sending keyboard input.

                Thread.Sleep(100);

 

                // Delete existing content in the control and insert new content.

                SendKeys.SendWait("^{HOME}");   // Move to start of control

                SendKeys.SendWait("^+{END}");   // Select everything

                SendKeys.SendWait("{DEL}");     // Delete selection

                SendKeys.SendWait(fullpath);

}

 

2015.4.25利用UIAutomation 替代API函數，解決了ListView無法讀資料的難題，順便實現了滑鼠類比滾輪