在 C++ (MFC) 中连接资源文件中的字符串和常量

2022-01-12 00:00:00 c++ mfc visual-studio-2010 resource-file

我有一个带有 MFC 和资源文件的 C++ 项目.在我的 About-Dialog 中，我想添加一个包含程序版本的常量.

I have a C++ project with MFC and a resource file. In my About-Dialog I want to add a constant which contains the version of the programm.

IDD_ABOUTBOX DIALOG DISCARDABLE  34, 22, 237, 65
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "About Monitor"
FONT 8, "MS Sans Serif"
BEGIN
    ICON            IDR_MAINFRAME, IDC_STATIC, 11, 22, 20, 20
#ifdef __64BIT__
    LTEXT           "Communication Monitor V" APP_VERSION " x86_64", IDC_STATIC, 40, 13, 150, 8
#else
    LTEXT           "Communication Monitor V" APP_VERSION " x86_32", IDC_STATIC, 40, 13, 150, 8
#endif //__64BIT__
    DEFPUSHBUTTON   "OK", IDOK, 200, 6, 32, 14
END

如果它看起来像这样，我会收到错误

If it looks like this I get an error

1>srcmonitor.rc(80): error RC2116: expecting number for ID
1>srcmonitor.rc(80): error RC2108: expected numerical dialog constant

我也尝试将它与 + 

IDD_ABOUTBOX DIALOG DISCARDABLE  34, 22, 237, 65
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "About Monitor"
FONT 8, "MS Sans Serif"
BEGIN
    ICON            IDR_MAINFRAME, IDC_STATIC, 11, 22, 20, 20
#ifdef __64BIT__
    LTEXT           "Communication Monitor V" + APP_VERSION + " x86_64", IDC_STATIC, 40, 13, 150, 8
#else
    LTEXT           "Communication Monitor V" + APP_VERSION + " x86_32", IDC_STATIC, 40, 13, 150, 8
#endif //__64BIT__
    DEFPUSHBUTTON   "OK", IDOK, 200, 6, 32, 14
END

但我得到了错误

1>srcmonitor.rc(80): error RC2237: numeric value expected at 3.1.4.1

我的下一个尝试是像我在 rc-file 顶部定义的函数一样调用它，但错误类似于上述两者.

My next try was to call it like a function which I defined at the top of my rc-file but the error was like the both above.

是否可以在 LTEXT 内的 rc 文件中连接字符串和变量?

Is it possible to concatenate a string and a variable in a rc-file within a LTEXT?

推荐答案

#define HSTR( N ) #N
#define STR( N ) HSTR( N )
#define VER_TXT( N ) Communication Monitor V##N x86_32
#define VER_STR( N ) STR( VER_TXT( N ) )

适用于 VS2013.应该也可以在 VS2010 上运行.

Works on VS2013. Should work on VS2010, too.

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