1、了解下MiniDumpWriteDump

MiniDumpWriteDump  (vs2008)

MSDN 

ImageHlp.h 文件

// …… 4647-4657BOOL
WINAPI
MiniDumpWriteDump(IN HANDLE hProcess,IN DWORD ProcessId,IN HANDLE hFile,IN MINIDUMP_TYPE DumpType,IN CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, OPTIONALIN CONST PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, OPTIONALIN CONST PMINIDUMP_CALLBACK_INFORMATION CallbackParam OPTIONAL);//……

hProcess ：要为其生成信息的进程的句柄。

此句柄必须具有PROCESS_QUERY_INFORMATION和 PROCESS_VM_READ访问权限。如果要收集句柄信息， 则还需要PROCESS_DUP_HANDLE访问

dump类型 （就是dump文件需要包含哪些信息）

// …… number line  4559-4580
typedef enum _MINIDUMP_TYPE {MiniDumpNormal                         = 0x00000000,MiniDumpWithDataSegs                   = 0x00000001,MiniDumpWithFullMemory                 = 0x00000002,MiniDumpWithHandleData                 = 0x00000004,MiniDumpFilterMemory                   = 0x00000008,MiniDumpScanMemory                     = 0x00000010,MiniDumpWithUnloadedModules            = 0x00000020,MiniDumpWithIndirectlyReferencedMemory = 0x00000040,MiniDumpFilterModulePaths              = 0x00000080,MiniDumpWithProcessThreadData          = 0x00000100,MiniDumpWithPrivateReadWriteMemory     = 0x00000200,MiniDumpWithoutOptionalData            = 0x00000400,MiniDumpWithFullMemoryInfo             = 0x00000800,MiniDumpWithThreadInfo                 = 0x00001000,MiniDumpWithCodeSegs                   = 0x00002000,MiniDumpWithoutAuxiliaryState          = 0x00004000,MiniDumpWithFullAuxiliaryState         = 0x00008000,MiniDumpValidTypeFlags                 = 0x0000ffff,
} MINIDUMP_TYPE;

MiniDumpNormal：仅包含捕获进程中所有现有线程的堆栈跟踪所需的信息（一般都是用这个）

2、minidump吐出来的dump文件为空，文件大小为0

把WriteMiniDump的多线程保护去掉就正常了，太奇葩了把

 minidump吐出来的dump文件为空，文件大小为0 

duilib的Dump对象里边有一个临界区对象，有几个函数是被保护起来的。注释掉就好了