What does the "T" represents in a string. For example _T("Hello").I have seen this in projects where unicode support is needed.What it actually tells the processor
“T”在字符串中表示什么。例如_T（“Hello”）。我在需要unicode支持的项目中看到了这一点。它实际告诉处理器的是什么
3 个解决方案
#1
26
_T stands for “text”. It will turn your literal into a Unicode wide character literal if and only if you are compiling your sources with Unicode support. See http://msdn.microsoft.com/en-us/library/c426s321.aspx.
_T代表“文字”。当且仅当您使用Unicode支持编译源时，它才会将您的文字转换为Unicode宽字符文字。请参阅http://msdn.microsoft.com/en-us/library/c426s321.aspx。
#2
12
From MSDN:
来自MSDN：
Use the
_Tmacro to code literal strings generically, so they compile as Unicode strings under Unicode or as ANSI strings (including MBCS) without Unicode使用_T宏一般编码文字字符串，因此它们在Unicode下编译为Unicode字符串或在没有Unicode的情况下编译为ANSI字符串（包括MBCS）
#3
11
It's actually used for projects where Unicode and ANSI support is required. It tells the compiler to compile the string literal as either Unicode or ANSI depending on the value of a precompiler define.
它实际上用于需要Unicode和ANSI支持的项目。它告诉编译器将字符串文字编译为Unicode或ANSI，具体取决于预编译器定义的值。
Why you would want to do this is another matter. If you want to support Unicode by itself then just write Unicode, in this case L"Hello". The _T() macro was added when you needed to support Windows NT and later (which support Unicode) and Windows 9x/ME (which do not). These days any code using these macros is obsolete, since all modern Windows versions are Unicode-based.
为什么你想要这样做是另一回事。如果您想单独支持Unicode，那么只需编写Unicode，在本例中为L“Hello”。当您需要支持Windows NT及更高版本（支持Unicode）和Windows 9x / ME（不支持Unicode）时，会添加_T（）宏。目前，使用这些宏的任何代码都已过时，因为所有现代Windows版本都是基于Unicode的。
#1
26
_T stands for “text”. It will turn your literal into a Unicode wide character literal if and only if you are compiling your sources with Unicode support. See http://msdn.microsoft.com/en-us/library/c426s321.aspx.
_T代表“文字”。当且仅当您使用Unicode支持编译源时，它才会将您的文字转换为Unicode宽字符文字。请参阅http://msdn.microsoft.com/en-us/library/c426s321.aspx。
#2
12
From MSDN:
来自MSDN：
Use the
_Tmacro to code literal strings generically, so they compile as Unicode strings under Unicode or as ANSI strings (including MBCS) without Unicode使用_T宏一般编码文字字符串，因此它们在Unicode下编译为Unicode字符串或在没有Unicode的情况下编译为ANSI字符串（包括MBCS）
#3
11
It's actually used for projects where Unicode and ANSI support is required. It tells the compiler to compile the string literal as either Unicode or ANSI depending on the value of a precompiler define.
它实际上用于需要Unicode和ANSI支持的项目。它告诉编译器将字符串文字编译为Unicode或ANSI，具体取决于预编译器定义的值。
Why you would want to do this is another matter. If you want to support Unicode by itself then just write Unicode, in this case L"Hello". The _T() macro was added when you needed to support Windows NT and later (which support Unicode) and Windows 9x/ME (which do not). These days any code using these macros is obsolete, since all modern Windows versions are Unicode-based.
为什么你想要这样做是另一回事。如果您想单独支持Unicode，那么只需编写Unicode，在本例中为L“Hello”。当您需要支持Windows NT及更高版本（支持Unicode）和Windows 9x / ME（不支持Unicode）时，会添加_T（）宏。目前，使用这些宏的任何代码都已过时，因为所有现代Windows版本都是基于Unicode的。