第一步：在pro中链接Lib
LIBS += -lDbgHelp
或
#pragma comment(lib , "DbgHelp.lib")
第二步：在main源文件中添加
#include <windows.h>
第三步：在main源文件中创建回调函数：
1 LONG CreateCrashHandler(EXCEPTION_POINTERS *pException){
2 //创建 Dump 文件
3 QDateTime CurDTime = QDateTime::currentDateTime();
4 QString current_date = CurDTime.toString("yyyy_MM_dd_hh_mm_ss");
5 //dmp文件的命名
6 QString dumpText = "Dump_"+current_date+".dmp";
7 EXCEPTION_RECORD *record = pException->ExceptionRecord;
8 QString errCode(QString::number(record->ExceptionCode, 16));
9 QString errAddr(QString::number((uint)record->ExceptionAddress, 16));
10 QString errFlag(QString::number(record->ExceptionFlags, 16));
11 QString errPara(QString::number(record->NumberParameters, 16));
12 HANDLE DumpHandle = CreateFile((LPCWSTR)dumpText.utf16(),
13 GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
14 if(DumpHandle != INVALID_HANDLE_VALUE) {
15 MINIDUMP_EXCEPTION_INFORMATION dumpInfo;
16 dumpInfo.ExceptionPointers = pException;
17 dumpInfo.ThreadId = GetCurrentThreadId();
18 dumpInfo.ClientPointers = TRUE;
19 //将dump信息写入dmp文件
20 MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(),DumpHandle, MiniDumpNormal, &dumpInfo, NULL, NULL);
21 CloseHandle(DumpHandle);
22 }
23 //创建消息提示
24 QMessageBox::warning(NULL,"Dump",QString("ErrorCode%1 ErrorAddr：%2 ErrorFlag:%3 ErrorPara:%4").arg(errCode).arg(errAddr).arg(errFlag).arg(errPara),
25 QMessageBox::Ok);
26 return EXCEPTION_EXECUTE_HANDLER;
27 }
第四步：在main函数中添加注册dump回调函数
1 int main(int argc, char *argv[])
2 {
3 QApplication a(argc, argv);
4 //获取系统编码
5 QTextCodec *codec = QTextCodec::codecForLocale();
6 QTextCodec::setCodecForLocale(QTextCodec::codecForLocale());
7 //注冊异常捕获函数
8 SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)CreateCrashHandler);
9 /***代码实现***/
10 }
这样就可以实现crashlog的保持和警告窗口提示。