将字符串复制到剪贴板，粘贴时只写入一个字符 [英] Copying string to clipboard, only one character written when pasted

问题描述

我是这个代码的基本代码，也在我的另一个问题中提到.该版本强制字符类型为 char*，这会破坏我的 unicode 项目的编译.所以我做了以下调整:

I was basic some code off this code, also mentioned in my other question. That version forces the character type to char*, which breaks compilation on my unicode project. So I made the following tweaks:

void SetClipboardText(CString & szData)
{
    HGLOBAL h;
    LPTSTR arr;

    size_t bytes = (szData.GetLength()+1)*sizeof(TCHAR);
    h=GlobalAlloc(GMEM_MOVEABLE, bytes);
    arr=(LPTSTR)GlobalLock(h);
    ZeroMemory(arr,bytes);
    _tcscpy_s(arr, szData.GetLength()+1, szData);
    szData.ReleaseBuffer();
    GlobalUnlock(h);

    ::OpenClipboard (NULL);
    EmptyClipboard();
    SetClipboardData(CF_TEXT, h);
    CloseClipboard();
}

复制看起来不错 - 在调试器中运行 Visual Studio 告诉我 arr 按预期包含复制的字符串.但是当我粘贴到任何应用程序时，只粘贴第一个字符.

The copying looks fine - running in a debugger Visual Studio tells me arr contains the copied string as expected. But When I then paste into any application, only the first character is pasted.

怎么了?

推荐答案

您在上一个问题的评论中的 Unicode 评论很有说服力.如果您有一个带有低 ASCII 字符的宽字符串，则在 UTF-16 中它将被编码为低 ASCII 字节后跟一个 NULL.使用 CF_UNICODETEXT 而不是 CF_TEXT.

Your Unicode comment in the prior question's comment is telling. If you have a wide character string with a low-ASCII character, in UTF-16 it's going to be encoded as the low-ASCII byte followed by a NULL. Use CF_UNICODETEXT instead of CF_TEXT.

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