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 / );

            int IncrementY = (int)(rect.Top + rect.Height / );

            //Make the cursor position to the element.

            SetCursorPos(IncrementX, IncrementY);

            //Make the left mouse down and up.

            mouse_event(MOUSEEVENTF_LEFTDOWN, IncrementX, IncrementY, , UIntPtr.Zero);

            mouse_event(MOUSEEVENTF_LEFTUP, IncrementX, IncrementY, , 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 / );

            int IncrementY = (int)(rect.Top + rect.Height / );

            //Make the cursor position to the element.

            SetCursorPos(IncrementX, IncrementY);

            //Make the left mouse down and up.

            mouse_event(MOUSEEVENTF_LEFTDOWN, IncrementX, IncrementY, , UIntPtr.Zero);

            mouse_event(MOUSEEVENTF_LEFTUP, IncrementX, IncrementY, , 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 = ;

            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 > )

                {

                    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

    }

}

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项目搭建（三）：自定义DLL

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