如何将应用程序寡妇的一部分作为视频流写入vga或usb [英] how to write part of application widow to vga or usb out as video stream

问题描述

如何将部分应用程序寡妇作为视频流写入vga或usb
真的，我想要的是在LCD显示屏上(而不是在我的笔记本电脑上的其他LCD显示屏上)在LCD屏幕上显示的应用程序(从窗口中选择应用程序的窗口的方形选择).

how to write part of application widow to vga or usb out as video stream
Really what i want is part of application (square selection of app winfrom window) view on LCD (not in my lap top other LCD ) screen.

推荐答案

那不是我们可以回答的问题.

很容易抓住"桌面显示的一部分.
将数据传输到USB端口很简单.
在LCD上显示数据很简单.


不幸的是，合并很多并不容易.

屏幕抓取将处于特定的颜色深度-如果此颜色不适用于LCD，则需要在传输之前在PC上或之后​​的设备上进行更改.

数据传输几乎肯定会需要某种协议-仅将原始数据发送到任何设备都不太可能产生图像.在您的打印机上尝试-将其直接发送到原始位图文件，然后查看其打印内容.首先在造纸厂购买股票.

LCD上任何东西的显示都非常简单-但是您必须遵循LCD或LCD控制器硬件制造商指定的规则和方法.


由于我们完全不知道您要连接哪种设备，因此我们丝毫无法帮助您！

Sorry, but that isn''t a question we can answer.

It is simple to "grab" a section of the desktop display.
It is simple to transfer data to the USB port.
It is simple to display data on a LCD.


Unfortunately, it isn''t simple to combine the lot.

The screen grab will be at a particular colour depth - if this is not suitable for the LCD then it will need changing, either at the PC before transmission, or at the device after.

The transfer of data will almost certainly require some protocol - just sending raw data to any device is unlikely to result in a picture. Try it with you printer - send it a raw bitmap file directly, and see what it prints. Buy shares in a paper factory first.

The display of anything on an LCD is pretty simple - but you have to follow the rules and methods specified by the LCD or LCD controller hardware manufacturer.


Since we have absolutely no idea what kind of device you are connecting, we cannot help you in the slightest!

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