SDL TextInput（使用新的1.3结构）

发布于 2024-11-10 01:24:34 字数 653 浏览 3 评论 0原文

好吧，我一直在研究 SDL 中的文本输入（如何将击键数据转换为字母并将它们附加到名为 Text 的 std::string 中），并且大多数教程都以这种方式进行了介绍：

//If a key was pressed
if(event->type == SDL_KEYDOWN )
{
        //If the key is a lowercase letter
        else if( (event->key.keysym.unicode >= (Uint16)'a' ) && (event->key.keysym.unicode <= (Uint16)'z' ) )
        {
            //Append the character
            Text += (char)event->key.keysym.unicode;
        }
}

但是经过一些搜索，我发现了一个请在 SDL 标头中注明 .unicode 已弃用并使用 SDL_TextInputEvent/SDL_TextEditingEvent。 SDL 文档 wiki 中有一些关于它的参考，但是我找不到任何有关如何使用它的示例。例如，如何使用新结构编写上面的代码片段？

原文

Okay, I have been studying text input in SDL (how to turn the keystrokes data into letters and append them to a std::string called Text) and most of the tutorials have covered it this way:

//If a key was pressed
if(event->type == SDL_KEYDOWN )
{
        //If the key is a lowercase letter
        else if( (event->key.keysym.unicode >= (Uint16)'a' ) && (event->key.keysym.unicode <= (Uint16)'z' ) )
        {
            //Append the character
            Text += (char)event->key.keysym.unicode;
        }
}

However after some searching, I found a note in the SDL headers saying .unicode is deprecated and to use SDL_TextInputEvent/SDL_TextEditingEvent. There is some reference to it in the SDL documentation wiki, however I couldn't find any example on how to use it. For instance, how would I write the above snippet using the new structure?

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