_CrtSetReportHook2, _CrtSetReportHookW2
通过将它安装或卸载一个客户端定义的报告功能添加到 C 运行时调试报告进程 (请只调试版本)。
int _CrtSetReportHook2(
int mode,
_CRT_REPORT_HOOK pfnNewHook
);
int _CrtSetReportHookW2(
int mode,
_CRT_REPORT_HOOKW pfnNewHook
);
参数
mode
采取的操作: _CRT_RPTHOOK_INSTALL 或 _CRT_RPTHOOK_REMOVE。pfnNewHook
报告挂钩安装或移除此函数的输出字符版本。pfnNewHook
报告挂钩安装或移除此函数的宽字符版本。
返回值
-1,如果遇到错误,与 EINVAL 或 ENOMEM 设置;否则在调用后返回引用计数 pfnNewHook 。
备注
_CrtSetReportHook2 和 _CrtSetReportHookW2可以挂钩或取消功能, _CrtSetReportHook ,而只可以挂钩函数。
应使用**_CrtSetReportHook2** 或 _CrtSetReportHookW2而不是 _CrtSetReportHook ,当挂钩在 DLL 时调用,所以,当多个 DLL 可能是加载并设置它们的挂钩函数。 在这种情况下, DLL 比其加载了可能以不同顺序卸载,并且挂钩函数可保留点在卸载的 DLL。 ,如果挂钩函数增加了 _CrtSetReportHook,任何调试输出故障进程。
所有挂钩函数添加与 _CrtSetReportHook 调用,如果没有挂钩函数添加与 _CrtSetReportHook2 或 _CrtSetReportHookW2或者,如果所有挂钩函数添加与 _CrtSetReportHook2 和 _CrtSetReportHookW2返回 FALSE。
此函数的宽字符版本可用。 报告挂钩函数采用类型的字符串 (宽或收缩字符) 必须与使用的此功能的版本。 用于报告挂钩使用以下函数原型使用此功能的宽字符版本:
int YourReportHook( int reportType, wchar_t *message, int *returnValue );
对于窄字符报告挂钩使用以下原型:
int YourReportHook( int reportType, char *message, int *returnValue );
这些功能验证其参数。 如果 mode 或 pfnNewNook 无效,这些函数调用的参数无效处理程序,如 参数验证所述。 如果执行允许继续,对 EINVAL 的这些功能集 errno 并且返回 -1。
备注
如果应用程序编译 /clr ,并报告函数时,在应用程序退出主要后, CLR 将引发异常,如果报告函数调用任何 CRT 函数。
要求
实例 |
必需的头 |
可选标头 |
---|---|---|
_CrtSetReportHook2 |
crtdbg.h |
errno.h |
_CrtSetReportHookW2 |
crtdbg.h |
errno.h |
有关更多兼容性信息,请参见中介绍的 兼容性 。
库
只调试 C 运行库 的版本。
示例
// crt_setreporthook2.c
#include <windows.h>
#include <stdio.h>
#include <crtdbg.h>
#include <assert.h>
int __cdecl TestHook1(int nReportType, char* szMsg, int* pnRet)
{
int nRet = FALSE;
printf("CRT report hook 1.\n");
printf("CRT report type is \"");
switch (nReportType)
{
case _CRT_ASSERT:
{
printf("_CRT_ASSERT");
// nRet = TRUE; // Always stop for this type of report
break;
}
case _CRT_WARN:
{
printf("_CRT_WARN");
break;
}
case _CRT_ERROR:
{
printf("_CRT_ERROR");
break;
}
default:
{
printf("???Unknown???");
break;
}
}
printf("\".\nCRT report message is:\n\t");
printf(szMsg);
if (pnRet)
*pnRet = 0;
return nRet;
}
int __cdecl TestHook2(int nReportType, char* szMsg, int* pnRet)
{
int nRet = FALSE;
printf("CRT report hook 2.\n");
printf("CRT report type is \"");
switch (nReportType)
{
case _CRT_WARN:
{
printf("_CRT_WARN");
break;
}
case _CRT_ERROR:
{
printf("_CRT_ERROR");
break;
}
case _CRT_ASSERT:
{
printf("_CRT_ASSERT");
nRet = TRUE; // Always stop for this type of report
break;
}
default:
{
printf("???Unknown???");
break;
}
}
printf("\".\nCRT report message is: \t");
printf(szMsg);
if (pnRet)
*pnRet = 0;
// printf("CRT report code is %d.\n", *pnRet);
return nRet;
}
int main(int argc, char* argv[])
{
int nRet = 0;
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1)"
" returned %d\n", nRet);
_ASSERT(0);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2)"
" returned %d\n", nRet);
nRet = _CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1);
printf("_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1)"
" returned %d\n", nRet);
return nRet;
}
Output
_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook2) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_INSTALL, TestHook1) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook2) returned 0
_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE, TestHook1) returned 0