請教各位大大：以下的程式在XP系統執行沒問題，但在WIN7就無法寫空資料到記憶卡，WIN7UAC都是使用最低。難到XPWIN7語法要不同?麻煩幫忙voidTForm1::CF_CLEAR()//重置CF_CARD{DWORDnulldata;//discardresultsDISK_GEOMETRYpdg;ATA_PASS_THROUGH_EXapt;hDevice=CreateFile(szDevName[Dev_no],//drivetoopenGENERIC_READ|GENERIC_WRITE,//noaccesstothedriveFILE_SHARE_READ//sharemodeFILE_SHARE_WRITE,NULL,//defaultsecurityattributesOPEN_EXISTING,//disposition0,//fileattributesNULL);//donotcopyfileattributesif(hDevice==INVALID_HANDLE_VALUE){CloseHandle(hDevice);}if(hDevice!=INVALID_HANDLE_VALUE)//ifopenthedrive{bResult=DeviceIoControl(hDevice,//devicetobequeriedIOCTL_DISK_GET_DRIVE_GEOMETRY,//operationtoperformNULL,0,//noinputbuffer&pdg,sizeof(pdg),//outputbuffer&nulldata,//#bytesreturnedNULL);//synchronousI/Oif(bResult==1){for(inti=0;i<512;i ){buffer[i]=0xFF;}sector=1000;numsector=1;buffer[0]=0xAA;buffer[1]=0xBB;buffer[2]=0xCC;buffer[3]=0xDD;buffer[4]=0xE9;buffer[5]=0x03;buffer[6]=0x00;buffer[7]=0x00;buffer[8]=0xE9;buffer[9]=0x03;buffer[10]=0x00;buffer[11]=0x00;SetFilePointer(hDevice,(sector*512),NULL,FILE_BEGIN);if(!WriteFile(hDevice,buffer,512*numsector,&byteswrite,NULL)){MessageBox(0,"EraseCF_DeviceFailed!!","EraseError",MB_OK);//如果不可清除return;}else{MessageBox(0,"EraseCF_DeviceO.K","EraseData",MB_OK);}}}CloseHandle(hDevice);test=0;}

[code cpp]
void TForm1::CF_CLEAR() //重置CF_CARD(Clear all data)
{
DWORD nulldata; // discard results
DISK_GEOMETRY pdg;
ATA_PASS_THROUGH_EX apt;
hDevice=CreateFile(szDevName[Dev_no], // drive to open
GENERIC_READ|GENERIC_WRITE,//no access to the drive
FILE_SHARE_READ | // share mode
FILE_SHARE_WRITE,
NULL, // default security attributes
OPEN_EXISTING, // disposition
0, // file attributes
NULL); // do not copy file attributes
if (hDevice == INVALID_HANDLE_VALUE)
{
CloseHandle(hDevice);
}
if (hDevice != INVALID_HANDLE_VALUE) // if open the drive
{ //=========
bResult = DeviceIoControl(hDevice, // device to be queried
IOCTL_DISK_GET_DRIVE_GEOMETRY, // operation to perform
NULL,
0, // no input buffer
&pdg,
sizeof(pdg), // output buffer
&nulldata, // # bytes returned
NULL); // synchronous I/O
if(bResult==1) //如果可讀出ＧＥＯＭＥＴＲＹ
{//
for(int i=0;i<512;i ){buffer[i]=0xFF;}
sector=1000;
numsector=1;
buffer[0]=0xAA;buffer[1]=0xBB;buffer[2]=0xCC;buffer[3]=0xDD;
buffer[4]=0xE9;buffer[5]=0x03;buffer[6]=0x00;buffer[7]=0x00;
buffer[8]=0xE9;buffer[9]=0x03;buffer[10]=0x00;buffer[11]=0x00;
SetFilePointer(hDevice,(sector*512),NULL,FILE_BEGIN);
//bResult=WriteFile(hDevice,buffer,512*numsector,&bytesread,NULL);
if(!WriteFile(hDevice,buffer,512*numsector,&byteswrite,NULL))
{//如果不可清除
MessageBox(0,"Erase CF_Device Failed !!","Erase Error",MB_OK);
return;
}
else
{
MessageBox(0,"Erase CF_Device O.K ","Erase Data",MB_OK);
}
}
}
CloseHandle(hDevice);
test=0;
}
[/code]