C#ImageSearch DLL

问题描述

因此，我最近制作了一个程序，该程序可以在屏幕上找到特定图像并返回其位置，实际上我在stackoverflow上找到了这部分代码，它使用的是AutoIT3中的ImageSearch.dll.

So I have recently made a program which finds specific image on the screen and returns the location of it, I actually found this part of the code on stackoverflow, which is using ImageSearch.dll from AutoIT3.

它工作得很好，但是，缺少一件事，我不知道该怎么做.我的意思是宽容.这是其功能的原始定义:

It works pretty well, however, there's one thing missing and I have no idea how to do it. I mean tolerance. This is the original definition of what it does:

";                $tolerance - 0 for no tolerance (0-255). Needed when colors of
;                            image differ from desktop. e.g GIF"

即使有一些差异，基本上也可以找到图像.

Basically allows to find the image even if there are a few differences.

这是我得到的代码:

    DllImport("ImageSearch.dll")]
    public static extern IntPtr ImageSearch(int x, int y, int right, int bottom, [MarshalAs(UnmanagedType.LPStr)]string imagePath);

        public static string[] UseImageSearch(string imgPath)
    {

        IntPtr result = ImageSearch(0, 0, Screen.PrimaryScreen.WorkingArea.Right, Screen.PrimaryScreen.WorkingArea.Bottom, imgPath);
        string res = Marshal.PtrToStringAnsi(result);

        if (res[0] == '0') return null;

        string[] data = res.Split('|');

        int x; int y;
        int.TryParse(data[1], out x);
        int.TryParse(data[2], out y);

        return data;
    }

我想以某种方式使宽容度保持原样.那可能吗?感谢您的帮助！

And I'd like to somehow make the tolerance work as it is in the original. Is that possible? Thanks for any help!

推荐答案

我实际上是想做同样的事情，所以我想我会发布如何做的.我在UseImageSearch()中添加了第二个参数string tolerance，并在tolerance字符串后附加了前缀*，​​并在imgPath字符串后加空格，然后将新字符串传递给DLL，并返回了字符串[ ]并获得理想的结果.

I was actually wanting to do the same thing so I figured I would post how I did it. I added a second parameter, string tolerance, to UseImageSearch() and appended the tolerance string, prefixed with an * and postfixed with a space to the imgPath string, I passed the new string to the DLL and it returned a string[] with the desired results.

using System;
using System.Runtime.InteropServices;
using System.Windows;

我提到了这些家伙

[DllImport(@"C:\ImageSearchDLL.dll")]
    public static extern IntPtr ImageSearch(int x, int y, int right, int bottom, [MarshalAs(UnmanagedType.LPStr)]string imagePath);

    public static string[] UseImageSearch(string imgPath, string tolerance)
    {
        imgPath = "*" + tolerance + " " + imgPath;

        IntPtr result = ImageSearch(0, 0, 1920, 1080, imgPath);
        string res = Marshal.PtrToStringAnsi(result);

        if (res[0] == '0') return null;

        string[] data = res.Split('|');

        int x; int y;
        int.TryParse(data[1], out x);
        int.TryParse(data[2], out y);

        return data;
    }

然后我使用图像路径和所需的公差级别0-255调用UseImageSearch

Then I called UseImageSearch using the image path and the desired tolerance level 0-255

 string image = (@"C:\Capture.PNG");

        string[] results = UseImageSearch(image, "30");
        if (results == null)
        {
            MessageBox.Show("null value bro, sad day");
        }
        else
        {
            MessageBox.Show(results[1] + ", " + results[2]);
        }

它按预期执行.

这篇关于C#ImageSearch DLL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！