在 Visual Studio 2010 中将输出消息写入“输出窗口”的最简单方法？

Question

我已经尝试过 OutputDebugString 功能，但大多数时候我会收到如下错误：

错误 C2664：“OutputDebugStringA”：无法将参数 1 从“int”转换为“LPCSTR”

例子

尝试1：

 //ERROR: sprintf is unsafe. Use sprintf_s instead
int x = 4;
char s[256];
sprintf(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);

尝试2：

 //FAIL: outputs junk (sprintf_s doesn't understand unicode?)
int x = 4;
char s[256];
sprintf_s(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);

尝试 3：

 //ERROR: no instance of overloaded function "sprintf_s" matches the argument list
int x = 4;
TCHAR s[256];
sprintf_s(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);

尝试4：

 //ERROR: no instance of overloaded function "sprintf_s" matches the argument list
int x = 4;
TCHAR s[256];
sprintf_s(s, L"There is %d numbers", x);
OutputDebugString((LPCWSTR)s);

尝试 5：

 //ERROR: no instance of overloaded function "swprintf" matches the argument list
int x = 4;
TCHAR s[256];
swprintf(s, "There is %d numbers", x);
OutputDebugString(s);

尝试 6：

 //ERROR: 'swprintf': function has been changed to confirm with the ISO C standard, adding an extra character count parameter
int x = 4;
TCHAR s[256];
swprintf(s, L"There is %d numbers", x);
OutputDebugString(s);

原文由 understack 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

它只接受字符串作为参数，而不接受整数。尝试类似的东西

sprintf(msgbuf, "My variable is %d\n", integerVariable);
OutputDebugString(msgbuf);

有关更多信息，请查看 http://www.unixwiz.net/techtips/outputdebugstring.html

原文由 peter_mcc 发布，翻译遵循 CC BY-SA 2.5 许可协议

Answer 2

要使用 OutputDebugString()，请提供 char * 或 const char * 作为参数：

 OutputDebugString("This is an output");

原文由 Donotalo 发布，翻译遵循 CC BY-SA 2.5 许可协议