使用输入框提示用户？ [C ++] [英] Prompting a user with an input box? [C++]

问题描述

我的目标是简单地使用弹出框来要求用户输入。我搜索了很多，几乎所有的结果说，创建一个messageBox是很容易：

  MessageBox ，Hello World，Hello，MB_OKCANCEL）; 
  

但是，创建一个接受输入的弹出窗口更多的参与，方式做到。我可以在Google上找到的所有结果都是从2001年到2005年。我想我在这里问是否有一些更直接的解决方案近年来出现。

希望有一些好的和直接的，像在Java中：

  int number = JOptionPane.showInputDialog（输入一个整数）; 
  

如果不是这样，我可以得到一个简单的解释如何做？ / p>

---

编辑：我无法使用任何工作。 （我最后编写代码来完成Java中的工作，然后编写一行C ++代码来调用.jar文件： - /由于问题是时间敏感的，它比没有更好。

解决方案

对于纯C ++，没有什么像这样的基本上你想要做的只能通过使用一个API调用OS或者通过使用一些GUI库，如Qt（我推荐因为它是waaaaay更容易，然后调用原生API，它也是多平台）

使用Qt你可以显示一个输入对话框几乎和在java上做的一样：

  bool ok; 
 QString text = QInputDialog :: getText 
MyApp 3000，输入您的姓名：，QLineEdit :: Normal，
 QString :: null，& ok，this）; 
 if（ok& .isEmpty（））{
 //用户输入并按下OK 
} else {
 //用户没有输入或按下取消
} 
  

您可以在这里下载Qt库： qt.nokia.com/products/developer-tools/

My goal is to simply use a pop-up box to ask the user for an input. I've searched around quite a bit and pretty much all the results say that creating a messageBox is really easy:

MessageBox (NULL, "Hello World" , "Hello", MB_OKCANCEL);

But that creating a pop-up that takes input is more involved and there isn't a straight forward way to do it. All of the results I could find on Google were dated somewhere from 2001 to 2005. I guess I'm here asking if some more straight forward solution has come about in recent years.

Hopefully something nice and straight forward like in Java:

int number = JOptionPane.showInputDialog ("Enter an integer");

If that isn't the case, could I get a brief explanation of how to do it?

---

Edit: I couldn't get anything to work. :( I ended up writing the code to do the work in Java, and then wrote one line of C++ code to call the .jar file. :-/ Since the issue was time sensitive, it was better than nothing.

解决方案

There is nothing like that for pure C++. Basically what you're trying to do can only be achieved by using an API call to the OS or by using some GUI library like Qt (which I recommend cause it's waaaaay easier then calling native APIs and it's also multi-platform)

Using Qt you can show an input dialog pretty much the same way you do it on java:

bool ok;
QString text = QInputDialog::getText(
        "MyApp 3000", "Enter your name:", QLineEdit::Normal,
        QString::null, &ok, this );
if ( ok && !text.isEmpty() ) {
    // user entered something and pressed OK
} else {
    // user entered nothing or pressed Cancel
}

You can download the Qt library here: qt.nokia.com/products/developer-tools/

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