_CrtSetReportHook2、_CrtSetReportHookW2
通过挂接到C运行时调试申报程序（仅调试版本）来安装或卸载一个客户端自定义报告函数。
int _CrtSetReportHook2(
int mode,
_CRT_REPORT_HOOK pfnNewHook
);
int _CrtSetReportHookW2(
int mode,
_CRT_REPORT_HOOKW pfnNewHook
);
参数
mode
要执行的操作: _CRT_RPTHOOK_INSTALL or _CRT_RPTHOOK_REMOVE。pfnNewHook
报告挂钩安装或移除此函数以减少字符版本。pfnNewHook
报告挂钩安装或移除此函数以减少字符版本。
返回值
-1，如果遇到错误，则与 EINVAL 或 ENOMEM 设置；则在调用之后返回 pfnNewHook 引用计数。
备注
_CrtSetReportHook2 和 _CrtSetReportHookW2 可以挂钩或解除挂钩函数，即，而仅可以挂钩函数。_CrtSetReportHook
应使用**_CrtSetReportHook2** 或 _CrtSetReportHookW2 替代 _CrtSetReportHook，则挂钩调用 DLL 中时调用，并且，当多个 DLL 可能是加载并将其挂钩函数。 在这种情况下 DLL，以不同顺序与其加载的可卸载，并可以挂钩函数保留点已卸载的 DLL。 如果挂钩函数 _CrtSetReportHook，添加了与任何输出调试崩溃进程。
所有与挂钩函数将调用 _CrtSetReportHook，如果未挂钩函数添加带有 _CrtSetReportHook2 或 _CrtSetReportHookW2 或者，如果挂钩函数将所有具有 _CrtSetReportHook2 和 _CrtSetReportHookW2 返回 FALSE。
此函数宽字符版本可用。 报告挂钩函数执行类型的字符串 (宽或缩小的字符) 必须与使用的此函数版本。 对于报告挂钩使用下列函数原型用于此函数宽字符版本：
int YourReportHook( int reportType, wchar_t *message, int *returnValue );
对于窄字符使用报告挂钩以下原型：
int YourReportHook( int reportType, char *message, int *returnValue );
这些函数验证其参数。 如果 mode或pfnNewNook是参数验证, 则函数调用无效参数处理程序, 如所述. 如果允许执行继续，则这些功能将 EINVAL 设置为 errno 并返回 -1。
备注
如果你的应用程序使用 /clr 编译，并且在该应用程序退出主函数后调用报告函数，那么报告函数调用任意的 CRT 函数，CLR将抛出异常。
要求
例程 |
必需的标头 |
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“简介”中的兼容性。
库
仅限 C 运行时库的调试版本。
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