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这期内容当中小编将会给大家带来有关Unity中怎么调用打印机打印图片,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
1、调用打印机首先就是要配置好打印机
就是电脑跟打印机已经连接好,有默认的打印机可以启动使用
2、调用方式
(1)使用外部第三方软件exe
代码如下:(就两句)
string path = Application.dataPath + @"\Textures02.png"; System.Diagnostics.Process.Start("mspaint.exe", path);//调用第三方应用去打印(其中path是要打印图片的路径,而mspaint.exe是调用Windows中的画板,然后从画板里启用打印功能)
(2)使用win自带软件
这个需要下载一个应用(应用会放在我的博客下载文件中名字是PrintImage.exe) 然后直接上代码:
public void Test() { string path = Application.dataPath + @"\Textures02.png,0,0,750,400";//从纸张的0. 0点,将图像调整为750×350点(计算:150mm/28.346 px/cm=529点,100mm/28.346 pm/cm=352点) 图片路径 string exepath = Application.streamingAssetsPath + @"\PrintImage.exe";//这个是需要下载的应用直接放到电脑上就行(调用打印机打印图片应用的路径) ProcessStartInfo info = new ProcessStartInfo(exepath);//指定启动进程时使用的一组值 info.Arguments = path;//获取或设置启动应用程序时要使用的一组命令行自变量 using (Process p=new Process()) { p.StartInfo = info; p.Start(); } }
(3)自己进行打印
/// <summary> /// 打印 /// </summary> public void PrintFile() { PrintDocument pri = new PrintDocument(); pri.PrintPage += Printpagetest; pri.Print(); } private void Printpagetest(object sender, PrintPageEventArgs e) { try { System.Drawing.Image image = System.Drawing.Image.FromFile(printPath); System.Drawing.Graphics g = e.Graphics; g.TranslateTransform(_4AHeight, 0); g.RotateTransform(90); g.DrawImage(image, 0, 0, _4AWidth, _4AHeight); } catch (Exception ee) { Debug.LogError(ee.Message); } }
(这里的第三种我还未进行测试,如出现错误无法实现请指正)
这里我选择的是第二种,1不好实现静默,3太麻烦,2使用是后台调用命令行
3、颜色问题
同时这里本人还找到了有博主自己写的调用打印机方法项目中需要用到调用打印机打印图片,原本觉得会很复杂,结果一搜索发现Assetstore有相应的插件。在网上找到别人分享的插件,完美的实现了功能,所以现在也来分享一下(因为想看到具体实现,所以用工具反编译了DLL,原本插件是直接导入就可以的)。
using System;using System.Diagnostics;using System.Drawing.Printing;using System.IO;using UnityEngine;namespace LCPrinter{ public static class Print { public static void PrintTexture(byte[] texture2DBytes, int numCopies, string printerName) { if (texture2DBytes == null) { UnityEngine.Debug.LogWarning("LCPrinter: Texture is empty."); return; } PrinterSettings printerSettings = new PrinterSettings(); if (printerName == null || printerName.Equals("")) { printerName = printerSettings.PrinterName; UnityEngine.Debug.Log("LCPrinter: Printing to default printer (" + printerName + ")."); } string str = string.Concat(new string[] { DateTime.Now.Year.ToString(), "-", DateTime.Now.Month.ToString(), "-", DateTime.Now.Day.ToString(), "-", DateTime.Now.Hour.ToString(), "-", DateTime.Now.Minute.ToString(), "-", DateTime.Now.Second.ToString(), "-", DateTime.Now.Millisecond.ToString() }); string text = (Application.persistentDataPath + "\\LCPrinterFiletmp_" + str + ".png").Replace("/", "\\"); UnityEngine.Debug.Log("LCPrinter: Temporary Path - " + text); File.WriteAllBytes(text, texture2DBytes); Print.PrintCMD(text, numCopies, printerName); } public static void PrintTextureByPath(string path, int numCopies, string printerName) { PrinterSettings printerSettings = new PrinterSettings(); if (printerName == null || printerName.Equals("")) { printerName = printerSettings.PrinterName; UnityEngine.Debug.Log("LCPrinter: Printing to default printer (" + printerName + ")."); } Print.PrintCMD(path, numCopies, printerName); } private static void PrintCMD(string path, int numCopies, string printerName) { Process process = new Process(); try { for (int i = 0; i < numCopies; i++) { process.StartInfo.FileName = "rundll32"; process.StartInfo.Arguments = string.Concat(new string[] { "C:\\WINDOWS\\system32\\shimgvw.dll,ImageView_PrintTo \"", path, "\" \"", printerName, "\"" }); process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; process.StartInfo.UseShellExecute = true; process.Start(); } } catch (Exception arg) { UnityEngine.Debug.LogWarning("LCPrinter: " + arg); } finally { process.Close(); UnityEngine.Debug.Log("LCPrinter: Texture printing."); } } }}
这是实现功能的源码。调用方法如下:
using UnityEngine;using System.Collections;using System.Diagnostics;using System;using System.IO;using LCPrinter;using UnityEngine.UI;public class LCExampleScript : MonoBehaviour { public Texture2D texture2D; public string printerName = ""; public int copies = 1; public InputField inputField; public void printSmileButton() { Print.PrintTexture(texture2D.EncodeToPNG(), copies, printerName);//打印一张编辑器中的图片 } public void printByPathButton() { Print.PrintTextureByPath("D:\\pic.png", copies, printerName);//打印一张存在指定路径的图片 }}
上述就是小编为大家分享的Unity中怎么调用打印机打印图片了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注亿速云行业资讯频道。
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