本文实例为大家分享了Unity打印机打印图片的具体代码,供大家参考,具体内容如下
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 + @"/Textures/002.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 + @"/Textures/002.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 }}
由于原本插件是添加好引用的,反编译之后缺少了引用,所以要去统一的安装路径E:/ unity5.3.2 /统一/编辑/数据/单声道/ lib中/单/ 2.0(这是我本地安装的路径)中找到System.Drawing.dll程序程序放入项目中的插件下。如在VS中报错没有添加引用,则要对项目添加引用
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持武林网。
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