ImageGear for .NET是一款圖形圖像處理控件，具有掃描，壓縮，瀏覽、添加注釋，打印，圖像編輯，OCR以及PDF和矢量圖像支持，使開發(fā)人員可以快速地開發(fā)出圖像處理程序，可用于.NET Framework2.0、3.0、3.5、4.0，ASP.NET，WPF，SilverLight，DirectX 10和Direct3D 10。支持超過100種圖片格式，包含：TIFF, JPEG, CAD, Vector, 3D PDF, PDF/A, PS等。

點(diǎn)擊下載ImageGear for .NET正式版

在本教程中，您將為控制臺應(yīng)用程序配置C＃或VB.NET項(xiàng)目，并使用ImageGear .NET功能。 您還將學(xué)習(xí)如何加載圖像，然后調(diào)整大小并將其轉(zhuǎn)換為新格式。

以下教程專門針對64位安裝。 對于32位安裝：

• 您的項(xiàng)目應(yīng)該已經(jīng)設(shè)置為可編譯為以Debug和x86為目標(biāo)，并且您應(yīng)該具有以下目錄：$ YOURLOCALPROJ \ bin \ x86 \ Debug \。
• 在整個說明中，將x64替換為x86。
• 在$ INSTALLDIR \ ImageGear .NET v24 \ Bin \中可以找到32位ImageGear二進(jìn)制文件。

使用所需版本的Visual Studio（2010或更高版本）：

1、使用C＃或VB.NET創(chuàng)建一個新的“控制臺應(yīng)用程序”項(xiàng)目，并將該項(xiàng)目命名為IG_Tutorial_Console。

2、如果使用配置管理器安裝了ImageGear .NET 64位，則為x64創(chuàng)建一個新的項(xiàng)目平臺（如果尚未安裝）。確保將項(xiàng)目設(shè)置為針對Debug和x64進(jìn)行編譯。確保您現(xiàn)在擁有$ YOURLOCALPROJ \ bin \ x64 \ Debug \，如果不存在，請創(chuàng)建它。

3、通過以下方式之一將引用和所需資源添加到項(xiàng)目中：
推薦：使用我們的NuGet軟件包。對于此項(xiàng)目，您需要以下軟件包：Accusoft.ImageGear.Core.nupkg

手動：

將$ INSTALLDIR \ ImageGear .NET v24 64位\ Bin \中的所有文件（和文件夾）復(fù)制到項(xiàng)目中的本地輸出bin目錄（即$ YOURLOCALPROJ \ bin \ x64 \ Debug \）。

將以下引用從$ YOURLOCALPROJ \ bin \ x64 \ Debug \添加到您的項(xiàng)目：

• ImageGear24.Core.dll
• ImageGear24.Evaluation.dll
• ImageGear24.Formats.Common.dll

4、至此，您的項(xiàng)目已準(zhǔn)備好編寫一些代碼。以下代碼可用于加載圖像，將其調(diào)整為150 x 150尺寸，并將其轉(zhuǎn)換為用戶指定的另一種格式。在下一步中，我們將更詳細(xì)地介紹此示例代碼的某些區(qū)域。

C#

using System;
using System.IO;

using ImageGear.Core;
using ImageGear.Evaluation;
using ImageGear.Formats;
using ImageGear.Processing;
using ImageGear.Display;

namespace IG_Tutorial_Console
{
   class Program
   {
static void Main(string[] args)
{
// Initialize license for a Deployment(Runtime) license.
//***The SetSolutionName, SetSolutionKey and possibly the SetOEMLicenseKey
//methods must be called to distribute the runtime.***
//ImGearLicense.SetSolutionName("YourSolutionName");
//ImGearLicense.SetSolutionKey(12345, 12345, 12345, 12345);
//Manually Reported Runtime licenses also require the following method
//call to SetOEMLicenseKey.
//ImGearLicense.SetOEMLicenseKey("2.0.AStringForOEMLicensing...");

// Initialize evaluation license.
ImGearEvaluationManager.Initialize();

// Initialize common formats.
ImGearCommonFormats.Initialize();

Console.WriteLine("Enter the complete path to the image to be converted:");
string fileName = Console.ReadLine();

Console.WriteLine("Enter the format for the new image among BMP|GIF|JPG|PNG|TIFF:");
string newFormat = Console.ReadLine();

try
   {   
    using (FileStream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read))
    {
 try
 {

 // Load the image into the page.
 ImGearPage imGearPage = ImGearFileFormats.LoadPage(stream, 0);

 // Resize the image to the width and height specified.
 // ImGearInterpolations.BILINEAR is the value indicating the type of interpolation employed.
 // It may be changed for other values, e.g. ImGearInterpolations.BICUBIC, ImGearInterpolations.NEAREST_NEIGHBOR.
 ImGearProcessing.Resize(imGearPage, 150, 150, ImGearInterpolationOptions.GetDefault(ImGearInterpolations.BILINEAR));

 string outputFileName = fileName.Substring(0,fileName.LastIndexOf('\\') + 1) + "out.";

 // Indicate the format used when saving the image.
 // It may be changed for other values, e.g. ImGearSavingFormats.JPG, ImGearSavingFormats.PNG.
 ImGearSavingFormats savingFormat = ImGearSavingFormats.UNKNOWN;

 // Identify the format selected.
 switch (newFormat)
 {

     case "BMP":
  outputFileName += "bmp";
  savingFormat = ImGearSavingFormats.BMP_UNCOMP;
  break;
     case "GIF":
  outputFileName += "gif";
  savingFormat = ImGearSavingFormats.GIF;
  break;
     case "JPG":
  outputFileName += "jpg";
  savingFormat = ImGearSavingFormats.JPG;
  break;      
     case "PNG":
  outputFileName += "png";
  savingFormat = ImGearSavingFormats.PNG;
  break;   
     case "TIFF":
  outputFileName += "tiff";
  savingFormat = ImGearSavingFormats.TIF_UNCOMP;
  break;
     default:
  Console.WriteLine("Unsupported format.");
  break;
 }  

 if (savingFormat != ImGearSavingFormats.UNKNOWN)
 {
     using (FileStream imGearConverted = new FileStream(outputFileName, FileMode.Create))
     {
  // Save the image to the format selected.   
  ImGearFileFormats.SavePage(imGearPage, imGearConverted, 1, ImGearSavingModes.OVERWRITE, savingFormat, new ImGearSaveOptions());
     }

     Console.WriteLine("Conversion successful.");
 }

 }
 catch (ImGearException ex)
 {
 Console.WriteLine("Conversion failed: " + ex.Message);
 }
    }
   }
   catch (Exception)
   {
    Console.WriteLine("Incorrect path to an image file.");
   }
Console.ReadLine();

}

   }
}

VB.NET

 Imports System
Imports System.IO

Imports ImageGear.Core
Imports ImageGear.Evaluation
Imports ImageGear.Formats
Imports ImageGear.Processing
Imports ImageGear.Display

Module Module1

   Sub Main()
' Initialize license for a Deployment(Runtime) license.
'***The SetSolutionName, SetSolutionKey and possibly the SetOEMLicenseKey
'methods must be called to distribute the runtime.***
'ImGearLicense.SetSolutionName("YourSolutionName");
'ImGearLicense.SetSolutionKey(12345, 12345, 12345, 12345);
'Manually Reported Runtime licenses also require the following method
'call to SetOEMLicenseKey.
'ImGearLicense.SetOEMLicenseKey("2.0.AStringForOEMLicensing...");

'Initialize evaluation license.
ImGearEvaluationManager.Initialize()

'Initialize common formats.
ImGearCommonFormats.Initialize()

Console.WriteLine("Enter the complete path to the image to be converted:")
Dim fileName As String = Console.ReadLine()

Console.WriteLine("Enter the format for the new image among BMP|GIF|JPG|PNG|TIFF:")
Dim newFormat As String = Console.ReadLine()

Try
Using stream As New FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)
    Try
 ' Load the image into the page.
 Dim imGearPage As ImGearPage = ImGearFileFormats.LoadPage(stream, 0)

 ' Resize the image to the width and height specified.
 ' ImGearInterpolations.BILINEAR is the value indicating the type of interpolation employed.
 ' It may be changed for other values, e.g. ImGearInterpolations.BICUBIC, ImGearInterpolations.NEAREST_NEIGHBOR.
 ImGearProcessing.Resize(imGearPage, 150, 150, ImGearInterpolationOptions.GetDefault(ImGearInterpolations.BILINEAR))

 Dim outputFileName As String = fileName.Substring(0, fileName.LastIndexOf("\") + 1) + "out."

 ' Indicate the format used when saving the image.
 ' It may be changed for other values, e.g. ImGearSavingFormats.JPG, ImGearSavingFormats.PNG.
 Dim savingFormat As ImGearSavingFormats = ImGearSavingFormats.UNKNOWN

 ' Identify the format selected.

 S elect Case newFormat
 Case "BMP"
     outputFileName += "bmp"
     savingFormat = ImGearSavingFormats.BMP_UNCOMP
 Case "GIF"
     outputFileName += "gif"
     savingFormat = ImGearSavingFormats.GIF
 Case "JPG"
     outputFileName += "jpg"
     savingFormat = ImGearSavingFormats.JPG
 Case "PNG"
     outputFileName += "png"
     savingFormat = ImGearSavingFormats.PNG
 Case "TIFF"
     outputFileName += "tiff"
     savingFormat = ImGearSavingFormats.TIF_UNCOMP
 End S elect

 If Not savingFormat = ImGearSavingFormats.UNKNOWN Then
 Using imGearConverted As FileStream = New FileStream(outputFileName, FileMode.Create)
     ' Save the image to the format selected.   
     ImGearFileFormats.SavePage(imGearPage, imGearConverted, 1, ImGearSavingModes.OVERWRITE, savingFormat, New ImGearSaveOptions())
     Console.WriteLine("Conversion successful.")
 End Using
 Else
 Console.WriteLine("Unsupported format.")
 End If

    Catch ex As Exception
 Console.WriteLine("Conversion failed: " + ex.Message)
    End Try

End Using

Catch ex As Exception
Console.WriteLine("Incorrect path to an image file.")
End Try

Console.ReadLine()

   End Sub

End Module