查看完整版本: 求助：OnBoardC编写程序，在650上无事，在TT5必死

求助：OnBoardC编写程序，在650上无事，在TT5必死

学习Preference的操作，但是找了半天也没有找到怎么删除，只好用Resource的方法来：

直接用一个按钮调用如下代码
：（准备拿来删除PowerDigi的注册信息…………………………）

void ClearPG ( void )
{
LocalID dbID ;
DmOpenRef gLibDB ;
UInt16 ResIndex ;
Err error ;
char* NumberStr ;

WinDrawChars ( "ClearPG OK" ,
   StrLen ( "ClearPG OK" ) , 10 , 100) ;
SysTaskDelay ( delayTime ) ;

dbID = DmFindDatabase ( 0 , "Saved Preferences" ) ;

WinDrawChars ( "GetDBID" ,
   StrLen ( "GetDBID" ) , 10 , 100) ;
StrIToA (  NumberStr , ( Int32 )dbID  ) ;
WinDrawChars ( NumberStr , StrLen ( NumberStr ) , 10 , 80) ;
SysTaskDelay ( delayTime );

gLibDB = DmOpenDatabase ( 0 , dbID , dmModeReadWrite ) ;

WinDrawChars ( "GetDBPointer" ,
   StrLen ( "GetDBPointer" ) , 10 , 100) ;
StrIToA (  NumberStr , ( Int32 ) gLibDB ) ;
WinDrawChars ( NumberStr , StrLen ( NumberStr ) , 10 , 80) ;
SysTaskDelay ( delayTime );

if ( gLibDB != NULL )
{  
  ResIndex = DmFindResource ( gLibDB , 'memo' , 49800 , NULL ) ;
  
   WinDrawChars ( "GetResourcePointer" ,
   StrLen ( "GetResourcePointer" ) , 10 , 100) ;
  SysTaskDelay ( delayTime );
  
    if ( ResIndex != 0xFFFF )
  {
   error = DmRemoveResource ( gLibDB , ResIndex ) ;
   
     WinDrawChars ( "Clear OK" ,
    StrLen ( "Clear OK" ) , 10 , 120) ;

  }
  else
  {
   
   WinDrawChars ( "Cannot find PowerDigi Reg Info" ,
    StrLen ( "Cannot find PowerDigi Reg Info" ) , 10 , 120) ;
   SysTaskDelay ( delayTime );

  }
}
else
{
  WinDrawChars ( "Cannot find Saved Preference" ,
   StrLen ( "Cannot find Saved Preference" ) , 10 , 100) ;
  SysTaskDelay ( delayTime );
}


}



用OnboardC编译
Treo650上面显示 Cannot find PowerDigi Reg Info
TT5,在ClearPG OK后面直接显示Fatal Exception，或者在GetDBID后面花屏死机

求助各位DX指点一二

你没有给NumberStr分配内存空间！