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吐温扫描仪部分扫描

[英]twain scanner partially scan

原文 2012-06-11 09:57:39 5 1 java/ scanning/ twain

I use twain 2.1 for connecting to scanner. 我使用twain 2.1连接扫描仪。 How can I set scanner to scan just part of a page without displaying preview page of scanner. 如何设置扫描仪仅扫描页面的一部分而不显示扫描仪的预览页。 I used source.setRegionOfInterest method, but it doesn't finish scanning and scanner can not be used until it restarted. 我使用了source.setRegionOfInterest方法，但是它没有完成扫描，并且在重新启动之前无法使用扫描仪。

1 个解决方案

The area of an image to be acquired will always be a rectangle called a frame. 要获取的图像区域将始终是称为框架的矩形。 There may be one or more frames located on a page. 页面上可能有一个或多个框架。 The TW_FRAME structure specifies the values for the Left, Right, Top, and Bottom of the frame to be acquired. TW_FRAME结构指定要获取的帧的Left，Right，Top和Bottom的值。

Java中的Twain设备（扫描仪）控件 - Twain device (scanner) control in Java

吐温扫描仪未从扫描仪获取图像 - twain scanner not acquiring the image from scanner

twain Scanner mmscomputing源不在状态3中，而是在状态5中 - twain Scanner mmscomputing Source not in state 3 but in state 5

是否可以通过闪存访问通用的TWAIN扫描仪？ - Is it possible to have flash access a generic TWAIN Scanner?

扫描仪不会扫描负数 - Scanner will not scan negative numbers

扫描仪不会扫描 - scanner won't scan

使用动态Web Twain扫描并将图像保存在服务器上 - Scan and save the images on server using dynamic web twain

扫描仪不会扫描第二行 - The scanner would not scan the second line

Scanner.scan /初始化变量 - Scanner.scan / initializing variables

Java：try（Scanner scan = new Scanner（System.in）{}导致异常 - Java: try(Scanner scan = new Scanner(System.in) { } causing an exception

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相关问题 Java中的Twain设备（扫描仪）控件 - Twain device (scanner) control in Java 吐温扫描仪未从扫描仪获取图像 - twain scanner not acquiring the image from scanner twain Scanner mmscomputing源不在状态3中，而是在状态5中 - twain Scanner mmscomputing Source not in state 3 but in state 5 是否可以通过闪存访问通用的TWAIN扫描仪？ - Is it possible to have flash access a generic TWAIN Scanner? 扫描仪不会扫描负数 - Scanner will not scan negative numbers 扫描仪不会扫描 - scanner won't scan 使用动态Web Twain扫描并将图像保存在服务器上 - Scan and save the images on server using dynamic web twain 扫描仪不会扫描第二行 - The scanner would not scan the second line Scanner.scan /初始化变量 - Scanner.scan / initializing variables Java：try（Scanner scan = new Scanner（System.in）{}导致异常 - Java: try(Scanner scan = new Scanner(System.in) { } causing an exception

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