项目搭建（三）：自定义DLL
说明：程序中有些自定义的控件类型在TestStack.White框架中没有涉及，需要引入自定义的DLL，通过鼠标点击事件处理
使用：将自定义的ClassLibrary2.dll拷贝到项目/bin/debug目录下，项目添加引用选择dll。
--该dll定义了Control Patterns为空的点击事件类BaseClass；
--该dll定义了查找控件属性类PropertyConditions；
一、 C#生成DLL文件
1. 在VS2015，文件->新建项目->项目类型visual C#->类库(注意必须是类库)
--即新建一个由纯.cs 类库文件组成的程序集。
2. 编写代码 详细代码见附录：
-文件名：Class1.cs
-namespace：BaseTest
-类名：BaseClass
3. 生成->生成[解决方案名]
这样你的\Projects\ClassLibrary2\ClassLibrary2\bin\Debug文件夹或者\Projects\ClassLibrary2\ClassLibrary2\obj\Debug文件夹里便会自动生成 dll文件，该文件名称与项目名称一致，即为ClassLibrary2.dll。
二、引用DLL文件
a. 首先把dll文件放到应用程序...\bin\Debug\下；
b. 然后在解决方案中添加引用：右键鼠标-->添加引用-->浏览-->选择dll放置路径后点击“确定”。
c. 在应用文件头处使用using BaseTest;
调用 dll中方法时使用BaseClass.方法名
三、附录：自定义类库代码
using System; using System.Text; using System.Windows; using System.Windows.Automation; using System.Diagnostics; using System.Runtime.InteropServices; namespace BaseTest { public class BaseClass { #region ClickMouse #region Import DLL /// <summary> /// Add mouse move event /// </summary> /// <param name="x">Move to specify x coordinate</param> /// <param name="y">Move to specify y coordinate</param> /// <returns></returns> [DllImport("user32.dll")] extern static bool SetCursorPos(int x, int y); /// <summary> /// Mouse click event /// </summary> /// <param name="mouseEventFlag">MouseEventFlag </param> /// <param name="incrementX">X coordinate</param> /// <param name="incrementY">Y coordinate</param> /// <param name="data"></param> /// <param name="extraInfo"></param> [DllImport("user32.dll")] extern static void mouse_event(int mouseEventFlag, int incrementX, int incrementY, uint data, UIntPtr extraInfo); const int MOUSEEVENTF_MOVE = 0x0001; const int MOUSEEVENTF_LEFTDOWN = 0x0002; const int MOUSEEVENTF_LEFTUP = 0x0004; const int MOUSEEVENTF_RIGHTDOWN = 0x0008; const int MOUSEEVENTF_RIGHTUP = 0x0010; const int MOUSEEVENTF_MIDDLEDOWN = 0x0020; const int MOUSEEVENTF_MIDDLEUP = 0x0040; const int MOUSEEVENTF_ABSOLUTE = 0x8000; #endregion public static void ClickLeftMouse(int processId, string automationId) { AutomationElement element = FindElementById(processId, automationId); if (element == null) { throw new NullReferenceException(string.Format("Element with AutomationId '{0}' and Name '{1}' can not be find.", element.Current.AutomationId, element.Current.Name)); } Rect rect = element.Current.BoundingRectangle; int IncrementX = (int)(rect.Left + rect.Width / 2); int IncrementY = (int)(rect.Top + rect.Height / 2); //Make the cursor position to the element. SetCursorPos(IncrementX, IncrementY); //Make the left mouse down and up. mouse_event(MOUSEEVENTF_LEFTDOWN, IncrementX, IncrementY, 0, UIntPtr.Zero); mouse_event(MOUSEEVENTF_LEFTUP, IncrementX, IncrementY, 0, UIntPtr.Zero); } #endregion public static void ClickLeftMouseByName(int processId, string name) { AutomationElement element = FindElementByName(processId, name); if (element == null) { throw new NullReferenceException(string.Format("Element with Name '{0}' and Name '{1}' can not be find.", element.Current.Name, element.Current.Name)); } Rect rect = element.Current.BoundingRectangle; int IncrementX = (int)(rect.Left + rect.Width / 2); int IncrementY = (int)(rect.Top + rect.Height / 2); //Make the cursor position to the element. SetCursorPos(IncrementX, IncrementY); //Make the left mouse down and up. mouse_event(MOUSEEVENTF_LEFTDOWN, IncrementX, IncrementY, 0, UIntPtr.Zero); mouse_event(MOUSEEVENTF_LEFTUP, IncrementX, IncrementY, 0, UIntPtr.Zero); } /// <summary> /// Get the automation elemention of current form. /// </summary> /// <param name="processId">Process Id</param> /// <returns>Target element</returns> public static AutomationElement FindWindowByProcessId(int processId) { AutomationElement targetWindow = null; int count = 0; try { Process p = Process.GetProcessById(processId); targetWindow = AutomationElement.FromHandle(p.MainWindowHandle); return targetWindow; } catch (Exception ex) { count++; StringBuilder sb = new StringBuilder(); string message = sb.AppendLine(string.Format("Target window is not existing.try #{0}", count)).ToString(); if (count > 5) { throw new InvalidProgramException(message, ex); } else { return FindWindowByProcessId(processId); } } } // Get the automation element by automation Id. public static AutomationElement FindElementById(int processId, string automationId) { AutomationElement aeForm = FindWindowByProcessId(processId); AutomationElement tarFindElement = aeForm.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.AutomationIdProperty, automationId)); return tarFindElement; } // Get the automation element by Name. public static AutomationElement FindElementByName(int processId, string name) { AutomationElement aeForm = FindWindowByProcessId(processId); AutomationElement tarFindElement = aeForm.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.NameProperty, name)); return tarFindElement; } // get the button element and click public static void ClickButtonById(int processId,string buttonId) { AutomationElement element = FindElementById(processId,buttonId); if (element == null) { throw new NullReferenceException(string.Format("Element with AutomationId '{0}' can not be find.", element.Current.Name)); } InvokePattern currentPattern = GetInvokePattern(element); currentPattern.Invoke(); } #region InvokePattern helper /// <summary> /// Get InvokePattern /// </summary> /// <param name="element">AutomationElement instance</param> /// <returns>InvokePattern instance</returns> public static InvokePattern GetInvokePattern(AutomationElement element) { object currentPattern; if (!element.TryGetCurrentPattern(InvokePattern.Pattern, out currentPattern)) { throw new Exception(string.Format("Element with AutomationId '{0}' and Name '{1}' does not support the InvokePattern.", element.Current.AutomationId, element.Current.Name)); } return currentPattern as InvokePattern; } #endregion } }
