Database Users

RAPI problem writing registry key value

I am presently writing a RegEdit program to run on my PC and allow editing of the registry on the connected PPC. I have got to the point where I can read the entire registry and I am now implementing function to update the registry i.e. insert new key, delete key, add new Key Values etc...
The problem I have at the moment is trying to add a new value to an existing key. The function I have written so far to do this is as follows, but the call to CeRegSetValueEx(...) returns an error code 5!
Code:
//-----------------------------------------------------------------------------------
// Adds a new key value into the registry.
// // TO DO - add the data
int CRegEditDoc::AddNewKeyValue(HTREEITEM hParent, HKEY hRoot, LPTSTR lpszKey, LPTSTR lpszValueName, DWORD dwType)
{
USES_CONVERSION;
int nItem, rc;
HKEY hKey;
LPWSTR lpwszKey = T2W(lpszKey);
LPWSTR lpwszValueName = T2W(lpszValueName);
try
{
if (lstrlen (lpszKey))
{
if (m_rapi.CeRegOpenKeyEx (hRoot, lpwszKey, 0, 0, &hKey) != ERROR_SUCCESS)
{
return 0;
}
}
else
{
hKey = hRoot;
}
CString strValue = "my data";
LPWSTR lpwszData = T2W(strValue);
DWORD length = dim(lpwszData);
nItem = m_pRightView->GetListCtrl().GetItemCount();
if (m_rapi.CeRegSetValueEx(hKey, lpwszValueName, 0, dwType, (LPBYTE)lpwszData, length*2) != ERROR_SUCCESS) // last 2 lpData, szie in bytes of data.
{
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
return 0;
}
}
catch (CException* e)
{
TCHAR szCause[255];
e->GetErrorMessage(szCause, 255);
CString errorMsg = _T("Error in: CRegEditDoc::AddNewKeyValue: ");
errorMsg += szCause;
AfxMessageBox(errorMsg);
e->Delete();
}
return 1;
}
I would appreciate a little advise on the matter, as this is the first time I have used the RAPI.
Thanks.

Hi VZ800!
The error you're getting is 'access denied'. In WM5 many RAPI functions (including writing to registry) are blocked for security reasons. Your only choice is to use a dll with CeRapiInvoke functions, but it needs to be deployed through a special cab.
You can read about this on msdn.
By the way, the app you're writing already exists, and it has the same problem.
Good luck!

Thanks for the advice. Since my post I have found that my code works for the HKEY_LOCAL_MACHINE, "/Software".
I will investigate the issue you have pointed me to.

Actually, your code should work for the entire HKEY_CLASSES_ROOT as well. MS decided to block only certain 'sensitive' parts of the registry so they can not be corrupted from the outside by malicious software.
If you noticed, MS's own remote registry editor works through DLLs (a ton of them).
Any way, I skimped on words in my first post, since I was writing it on a bus, and while I love my Jamin, writing long text on it is not very enjoyable.
Let me elaborate on CeRapiInvoke:
It's a function you call on the PC side that receives a DLL name and a function name (in that DLL) as parameters and calls that function on the device. It also lets you transfer buffers of data to and from the called function.
It's a great way to communicate with a PPC device without using sockets. You can write the device side DLL to do what ever you wont (like access protected registry) and report back to the PC.
The only drawback is in WM5 this DLL has to be registered and have a 'system' file attribute set. That's why you have to deploy it by cab.
Like I said before it's all in the MSDN.
Hope this helps.

Thanks. I have read the articles (and printed them) about RAPI Restricted Mode Security etc... http://msdn.microsoft.com/library/d...5/html/wce51conRAPIRestrictedModeSecurity.asp and will write a DLL to go on the PPC which will be installed via CAB etc...
I updated the function to add a new value anyway. Rather than calling the RAPI functions for the registry CeRapi... I will call my own functions in my authorised DLL.
Code:
//-----------------------------------------------------------------------------------
// Adds a new key value into the registry.
//
int CRegEditDoc::AddNewKeyValue(HTREEITEM hParent, HKEY hRoot, LPTSTR lpszKey,
LPTSTR lpszValName, DWORD dwDType, LPBYTE lpData)
{
USES_CONVERSION;
HKEY hKey;
LPWSTR lpwszKey = T2W(lpszKey);
LPWSTR lpwszValName = T2W(lpszValName);
DWORD dwDSize = sizeof(lpData);
try
{
if (lstrlen(lpszKey))
{
if (m_rapi.CeRegOpenKeyEx (hRoot, lpwszKey, 0, 0, &hKey) != ERROR_SUCCESS)
{
return 0;
}
}
else
{
hKey = hRoot;
}
// Check if valuename already exists. Should never happen, but just in case.
if (m_rapi.CeRegQueryValueEx(hKey, lpwszValName, 0, &dwDType, NULL, &dwDSize) == ERROR_SUCCESS)
{
AfxMessageBox(_T("Value of this name already exists!"));
return 0;
}
if (m_rapi.CeRegSetValueEx(hKey, lpwszValName, 0, dwDType, lpData, dwDSize) != ERROR_SUCCESS)
{
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
AfxMessageBox(_T("Unable to create new value for this key!\nPlease check access rights."));
return 0;
}
}
catch (CException* e)
{
TCHAR szCause[255];
e->GetErrorMessage(szCause, 255);
CString errorMsg = _T("Error in: CRegEditDoc::AddNewKeyValue: ");
errorMsg += szCause;
AfxMessageBox(errorMsg);
e->Delete();
}
return 1;
}

A question on using the CeRapiInvoke function. Obviously my function that I will be invoking in my DLL will need to conform to the following footprint:
Code:
LPCWSTR, LPCWSTR, DWORD, BYTE*, DWORD*, BYTE**, IRAPIStream**, DWORD
What I would like to know is this: If I want my function to be a wrapper to say the
Code:
CeRegQueryValueEx(HKEY, LPWSTR, LPDWORD, LPDWORD, LPBYTE, LPDWORD)
function, how do I parse the function args? Please suggest how I would pack them into a BYTE* for the pInput parameter.

Actually, you got it a bit wrong:
Code:
FuncName(DWORD cbInput, BYTE *pInput, DWORD *pcbOutput, BYTE **ppOutput, IRAPIStream *ppIRAPIStream);
The prototype you specified is for the PC side (the first two strings are DLL name and function name);
I use the following parsing method:
Code:
BYTE* curInputPos = pInput;
memcpy((BYTE*)&hKey, curInputPos, sizeof(HKEY));
curInputPos += sizeof(HKEY);
memcpy((BYTE*)&dwIndex, curInputPos, sizeof(DWORD));
curInputPos += sizeof(DWORD);
memcpy((BYTE*)&Reserved, curInputPos, sizeof(DWORD));
curInputPos += sizeof(DWORD);
It works fine both ways.
Just don't forget to use LocalAlloc for inBuffer and LocalFree for outBuffer.

Thanks. I'll let you know how I get on.

So if I were to parse an HKEY and an LPTSTR accross I would do the following to put the data into a BYTE array:
Code:
DWORD dwIn, dwOut;
LPBYTE pInput;
PDWORD pOut;
dwIn = sizeof(HKEY) + (strlen(lpszKey)*sizeof(TCHAR));
pInput = (BYTE*)(LocalAlloc(LPTR, dwIn));
memcpy(pInput, (BYTE*)&hKey, sizeof(HKEY));
pInput += sizeof(HKEY);
memcpy(pInput, (BYTE*)&lpszKey, strlen(lpszKey)*sizeof(TCHAR));
// move pointer back to begining.
pInput -= sizeof(HKEY);

Basically, yes but with two reservations:
1) I recommend using a different pointer for the current position in buffer, to avoid errors.
2) you need to put the string length in the byte array before the string, otherwise you won't know it's length on the device side. Alternatively, you have to add 1 to the length so the 0 byte at the end gets packed and you can use strlen on the device.
Also keep in mined that unless you define the PC side project to work with UNICODE libraries, THCHAR will be defined as char, while on the device it's always WCHAR.

I really apreciate your help. I still can't get my DLL function to work I keep getting error 1064!
This is my code for the DLL named REditSvr.dll:
Code:
#include <windows.h>
#ifdef __cplusplus
extern "C"
{
#endif
__declspec (dllexport) INT RegEditDeleteValue (DWORD cbInput, BYTE* pInput, DWORD* pcbOutput, BYTE** ppOutput, PVOID reserved);
#ifdef __cplusplus
}
#endif
BOOL WINAPI DllMain (HANDLE hinstDLL, DWORD dwReason, LPVOID lpvReserved)
{
return TRUE;
}
INT RegEditDeleteValue (DWORD cbInput, BYTE* pInput, DWORD* pcbOutput, BYTE** ppOutput, PVOID reserved)
{
INT rc = 0;
BYTE* curInputPos = pInput;
HKEY hKey;
DWORD dwLength;
// Copy args out of input buffer.
memcpy((BYTE*)&hKey, curInputPos, sizeof(HKEY));
curInputPos += sizeof(HKEY);
memcpy((BYTE*)&dwLength, curInputPos, sizeof(DWORD));
curInputPos += sizeof(DWORD);
// Allocate enough memory for local wchar.
LPWSTR lpszValueName = (WCHAR*)malloc(dwLength);
memcpy((BYTE*)&lpszValueName, curInputPos, sizeof(dwLength));
curInputPos += sizeof(dwLength);
// Do the registry delete.
rc = RegDeleteValue(hKey, lpszValueName);
// Allocate memory for the return buffer.
BYTE* pOutput = (BYTE*)LocalAlloc(LPTR, sizeof(long));
memcpy(pOutput, (BYTE*)rc, sizeof(long));
*ppOutput = pOutput;
*pcbOutput = sizeof(long);
// Free input buffer.
LocalFree(pInput);
// Free WCHAR
free(lpszValueName);
return GetLastError();
}
and this is the code in my PC application which invokes the above function (or I would hope it did):
Code:
//-----------------------------------------------------------------------------------
// Deletes the key value from the registry.
//
int CRegEditDoc::DeleteKeyValue(HKEY hRoot, LPCTSTR lpszKey, LPCTSTR lpszValName)
{
USES_CONVERSION;
HKEY hKey;
LPWSTR lpwszKey = T2W(lpszKey);
LPWSTR lpwszValName = T2W(lpszValName);
try
{
if (lstrlen(lpszKey))
{
if (m_rapi.CeRegOpenKeyEx (hRoot, lpwszKey, 0, 0, &hKey) != ERROR_SUCCESS)
{
return 0;
}
}
else
{
hKey = hRoot;
}
/* if (m_rapi.CeRegDeleteValue(hKey, lpwszValName) != ERROR_SUCCESS)
{
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
AfxMessageBox(_T("Unable to delete value for this key!\nPlease check access rights."));
return 0;
}
*/
// Testing remote registry value deletion.
DWORD dwIn, dwOut;
LPBYTE pInput, pCurInputPos;
PDWORD pOut;
DWORD dwLength = wcslen(lpwszValName)*sizeof(WCHAR);
dwIn = sizeof(HKEY) + dwLength;
pInput = (BYTE*)(LocalAlloc(LPTR, dwIn));
pCurInputPos = pInput;
memcpy(pCurInputPos, (BYTE*)&hKey, sizeof(HKEY));
pCurInputPos += sizeof(HKEY);
// Store the length of the string
memcpy(pCurInputPos, (BYTE*)&dwLength, sizeof(DWORD));
pCurInputPos += sizeof(DWORD);
memcpy(pCurInputPos, (BYTE*)&lpwszValName, dwLength);
HRESULT hr = m_rapi.CeRapiInvoke(L"REditSvr", L"RegEditDeleteValue", dwIn,
pInput, &dwOut, (PBYTE*)&pOut, NULL, 0);
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
LocalFree(pOut);
if (hKey != hRoot)
{
m_rapi.CeRegCloseKey(hKey);
}
}
catch (CException* e)
{
TCHAR szCause[255];
e->GetErrorMessage(szCause, 255);
CString errorMsg = _T("Error in: CRegEditDoc::DeleteKeyValue: ");
errorMsg += szCause;
AfxMessageBox(errorMsg);
e->Delete();
}
return 1;
}
The DLL has been deployed to the PPC \Windows folder by eVC4. My PPC runs WM5 (is this the problem, although I have written programs with eVC4 ok for it).
I would again appreciate your help/advice on why this isn't working. At present I have unlocked my PPC and I am able to edit any part of the registry etc...

Hi VZ800!
I noticed a couple of errors in your code (which you may have corrected yourself by now) but the biggest problem, I think is that you don't register the dll.
Here is the part you missed from MSDN:
(full link: http://msdn.microsoft.com/library/d...en-us/mobilesdk5/html/mob5lrfcerapiinvoke.asp)
To satisfy the requirements of the Remote Access Security Policy
1. Create a provisioning XML document that adds the new node "RAPI" to the metabase. This node must include the absolute path to the *.DLL file. For more information, see Metabase Settings. The following code example shows the contents of a typical provisioning XML file.
<wap-provisioningdoc>
<characteristic type="Metabase">
<characteristic type="RAPI\Program Files\Green Sky\recaller.dll\*">
<parm name="rw-access" value="3"/>
<parm name="access-role" value="152"/>
</characteristic>
</characteristic>
</wap-provisioningdoc>
2. Pass the file name of the provisioning XML document to the CAB wizard using the /postxml command line option. The CAB wizard will append the XML to the _setup.xml file it places in the CAB. For more information on creating CAB files, see CAB Wizard.
3. Set the System attribute on the *.DLL file.
Only the Manager security role provides the required permissions for modifying the metabase. The ideal way to get this security role is to have your application signed with a privileged certificate.
Note Since Pocket PC implements a one-tier security model, the CAB install process will automatically have the Manager security role.
Click to expand...
Click to collapse
Here's my advice:
Create a simple function that doesn't receive parameters, but pops up a message on the device. When you see that calling it works, try adding the rest of the code.

Hi
As I understand the DLL does not require code to self- register. Anyway, I can call the DLL function and did as you suggested and put a MessageBox in the function. This displayed fine. My code for the DLL is as follows now:
Code:
#include <windows.h>
#ifdef __cplusplus
extern "C"
{
#endif
__declspec (dllexport) INT RegEditDeleteValue (DWORD cbInput, BYTE* pInput, DWORD* pcbOutput, BYTE** ppOutput, PVOID reserved);
#ifdef __cplusplus
}
#endif
BOOL WINAPI DllMain (HANDLE hinstDLL, DWORD dwReason, LPVOID lpvReserved)
{
return TRUE;
}
INT RegEditDeleteValue (DWORD cbInput, BYTE* pInput, DWORD* pcbOutput, BYTE** ppOutput, PVOID reserved)
{
DWORD rc = 0;
BYTE* curInputPos = pInput;
LPCWSTR lpszValueName;
HKEY hKey;
int len;
// Copy args out of input buffer.
memcpy((BYTE*)&hKey, curInputPos, sizeof(HKEY));
curInputPos += sizeof(HKEY);
// Size of value name string.
memcpy((BYTE*)&len, curInputPos, sizeof(int));
curInputPos += sizeof(int);
// Value name string.
memcpy((BYTE*)&lpszValueName, curInputPos, sizeof(len));
curInputPos += sizeof(len);
// Do the registry delete.
rc = RegDeleteValue(hKey, lpszValueName);
// Allocate memory for the return buffer.
*ppOutput = (BYTE*)LocalAlloc(LPTR, rc);
memcpy(*ppOutput, (BYTE*)&rc, sizeof(DWORD));
*pcbOutput = sizeof(DWORD);
// Free input buffer.
if (pInput)
LocalFree(pInput);
return GetLastError();
}
and this is the code from which I am calling it:
Code:
//-----------------------------------------------------------------------------------
// Deletes the key value from the registry.
//
int CRegEditDoc::DeleteKeyValue(HKEY hRoot, LPCTSTR lpszKey, LPCTSTR lpszValName)
{
USES_CONVERSION;
HKEY hKey;
LPWSTR lpwszKey = T2W(lpszKey);
LPCWSTR lpwszValName = T2W(lpszValName);
try
{
if (lstrlen(lpszKey))
{
if (m_rapi.CeRegOpenKeyEx (hRoot, lpwszKey, 0, 0, &hKey) != ERROR_SUCCESS)
{
return 0;
}
}
else
{
hKey = hRoot;
}
/* if (m_rapi.CeRegDeleteValue(hKey, lpwszValName) != ERROR_SUCCESS)
{
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
AfxMessageBox(_T("Unable to delete value for this key!\nPlease check access rights."));
return 0;
}
*/
// Testing remote registry value deletion.
DWORD dwIn, dwOut;
LPBYTE pInput, pCurInputPos;
PDWORD pOut, rc;
int len = wcslen(lpwszValName)*sizeof(WCHAR);
dwIn = sizeof(HKEY) + len;
pInput = (BYTE*)(LocalAlloc(LPTR, dwIn));
pCurInputPos = pInput;
// Store the hKey value in the output buffer.
memcpy(pCurInputPos, (BYTE*)&hKey, sizeof(HKEY));
pCurInputPos += sizeof(HKEY);
// Store the length of the string in the output buffer.
memcpy(pCurInputPos, (BYTE*)&len, sizeof(int));
pCurInputPos += sizeof(int);
// Store the value name string in the output buffer.
memcpy(pCurInputPos, (BYTE*)&lpwszValName, len);
HRESULT hr = m_rapi.CeRapiInvoke(L"REditSvr", L"RegEditDeleteValue", dwIn,
pInput, &dwOut, (PBYTE*)&pOut, NULL, 0);
// HRESULT hr = RapiFuncTest(dwIn, pInput, &dwOut, (PBYTE*)&pOut, NULL);
HRESULT hResult = m_rapi.CeRapiGetError();
DWORD dwError = m_rapi.CeGetLastError();
if (dwOut)
{
memcpy((BYTE*)&rc, pOut, sizeof(DWORD));
}
if (pOut)
{
LocalFree(pOut);
}
if (hKey != hRoot)
{
m_rapi.CeRegCloseKey(hKey);
}
}
catch (CException* e)
{
TCHAR szCause[255];
e->GetErrorMessage(szCause, 255);
CString errorMsg = _T("Error in: CRegEditDoc::DeleteKeyValue: ");
errorMsg += szCause;
AfxMessageBox(errorMsg);
e->Delete();
}
return 1;
}
As you can see in the DeleteKeyValue(...) function I called a test-function just to check that I was retrieving the data out of the pInput buffer ok, which I am.
I signed the DLL with the SDKSamplePrivDeveloper.pfx, added the /postxml via the /postxml switch in the cabwiz and successfully created a CAB file which installs the DLL into the \Windows folder on the PPC. The .inf file is as follows:
Code:
[CEStrings]
InstallDir=%CE2%
AppName="REditSvr"
[Strings]
CompanyName="AHartley"
[Version]
Signature="$Chicago$"
CESignature="$Windows CE$"
Provider=%CompanyName%
[SourceDisksNames.Arm]
1=,"arm files",,C:\eMDevelopment\PPCRegEdit\REditSvr\REL
[SourceDisksFiles.Arm]
REditSvr.dll=1
[Files.ARM]
REditSvr.dll
[DestinationDirs]
Files.Arm=,%InstallDir%
[DefaultInstall.Arm]
CopyFiles=Files.Arm
My PC side code invokes the DLL function return 0 as error code. But the error code returned in the ppOutput buffer is 0x00000057 Dec 87. Which equates to the error message "The parameter is incorrect."! Which must be a param of the RegDeleteValue(...) function, as if I comment this out I don't get any error return values!!
Any odeas?
This is all academic now as I won't be finishing the PPCRegEdit program coz of the Remote Registry Editor tool available in the eVC4 IDE, which I hadn't noticed before, duh. But I would like to know why the function isn't working as required.

You were writing this as a tool? :shock:
If you just asked, people would have told you about the existing reg edit and CeRegEdit witch works through RAPI directly.
Still, it is a nice exercise in coding which I done my self once (for other purposes)
Any way, your error is simple:
Code:
// Value name string.
memcpy((BYTE*)&lpszValueName, curInputPos, sizeof(len));
curInputPos += sizeof(len);
You are parsing it incorrectly.
This is how it should look:
Code:
// Value name string.
memcpy((BYTE*)lpszValueName, curInputPos, len);
curInputPos += len;
and on the PC side:
Code:
memcpy(pCurInputPos, (BYTE*)&lpwszValName, len);
should be:
Code:
memcpy(pCurInputPos, (BYTE*)lpwszValName, len);
once again, no offence but if you just read your code more carefully and use debug prints to check parameters, you won't need anyone's help.
Good luck in future projects.
(whoops, made an error my self while correcting another)

Yes, it is just an exercise.
Thanks for all your help. Sorry for the silly errors, I will try and take more care in future.

CeMountDBVolEx on mxip_swmgmt.vol results in ERROR_SHARING_VIOLATION

Due to some recent changes in WM 6.1, when I uninstall my cab via 'Remove Programs' and then later install it again, it says 'The current version will be removed before the new one is installed'. I am using the WM 6.1 emulator
The reason for this prompt to throw up is because the app name still exists in the \mxip_swmgmt.vol. I have verified this by opening the .vol with MemMaid. I was able to get around the prompt by deleting the respective record from mxip_swmgmt.vol using MemMaid.
Now I intend to achieve the same programatically. These are the API's used.
Code:
CEGUID ceGUID;
HANDLE hSession, hDatabase;
DWORD dwErr = 0;
DWORD dwErr1 = 0;
::CeFlushDBVol(0);
// Mount the vol
//
if (!::CeMountDBVolEx (&ceGUID, TEXT ("\mxip_swmgmt.vol"), NULL, OPEN_EXISTING))
{
dwErr = ::GetLastError();
return;
}
At this point it returns and the value in dwErr is 32 i.e. 'The process cannot access the file because it is being used by another process.'
I went one step ahead and stopped the SWMGMTSERVICE which I strongly believe is holding onto the mxip_swmgmt.vol.
The code now looks like
Code:
CEGUID ceGUID;
DWORD dwErr = 0;
DWORD dwErr1 = 0;
// Bring down the SWMGMTSERVICE so that we get a handle to pszVol
//
HANDLE hService = ::GetServiceHandle (TEXT ("SWM0:"), NULL, NULL);
if (hService != INVALID_HANDLE_VALUE)
{
if (!::DeregisterService (hService))
{
dwErr = ::GetLastError();
return;
}
}
::CeFlushDBVol(0);
// Mount the vol
//
if (!::CeMountDBVolEx (&ceGUID, TEXT ("\mxip_swmgmt.vol"), NULL, OPEN_EXISTING))
{
dwErr1 = ::GetLastError();
// restart the service and return
//
::RegisterService (TEXT ("SWM"), 0, TEXT ("swmgmtservice.dll"), 0);
return;
}
Now at this point dwErr1 contains the error code 1358 i.e. 'Unable to complete the requested operation because of either a catastrophic media failure or a data structure corruption on the disk.'
Any idea how I can get a handle to mxip_swmgmt.vol either by stopping or without stopping the relevant services ?
Thanks.

A gentle bump.
Any clues will certainly help.

have u got any workable solution? I am facing same problem.

[Q] What are fields i should i change for my codes?

What are the fields in (Example 1) i should change with relate to my mainActivity.java file? Sorry i'm kinna new in android/java therefore i don't really know what fields to change to suit my existing codes... Can someone help?
My mainActivity.java file
Code:
File dirlist = new File(Environment.getExternalStorageDirectory() + "/VideoList");
if(!(dirlist.exists()))
dirlist.mkdir();
File TempFile = new File(Environment.getExternalStorageDirectory() + "/VideoList", dateFormat.format(date) + fileFormat);
(Example 1) I found but i do not know what are fields i should change here to suit my codes above?
Code:
private static long dirSize(File dir) {
long result = 0;
Stack<File> dirlist= new Stack<File>();
dirlist.clear();
dirlist.push(dir);
while(!dirlist.isEmpty())
{
File dirCurrent = dirlist.pop();
File[] fileList = dirCurrent.listFiles();
for (int i = 0; i < fileList.length; i++) {
if(fileList[i].isDirectory())
dirlist.push(fileList[i]);
else
result += fileList[i].length();
}
}
return result;
}

List files in data/data/

Code:
if(RootTools.isAccessGiven(){
List<String> SnapList;
File file;
ListView ListView = (ListView) findViewById(R.id.SnapList);
SnapList = new ArrayList<String>();
String directory = "/data/data/";
file = new File(directory);
File list[] = file.listFiles();
for( int i=0; i< list.length; i++)
{
SnapList.add( list[i].getName() );
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, SnapList);
ListView.setAdapter(adapter);
}
}
I'm trying to list the folders in /data/data in a ListView (SnapList) but this code doesn't work and my logcat in eclipse isn't working.
Can anyone shed some light? Thanks.

Chalky94 said:
Code:
if(RootTools.isAccessGiven()[COLOR="Red"])[/COLOR]{
List<String> SnapList;
File file;
ListView ListView = (ListView) findViewById(R.id.SnapList);
SnapList = new ArrayList<String>();
String directory = "/data/data/";
file = new File(directory);
File list[] = file.listFiles();
for( int i=0; i< list.length; i++)
{
SnapList.add( list[i].getName() );
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, SnapList);
ListView.setAdapter(adapter);
}
}
I'm trying to list the folders in /data/data in a ListView (SnapList) but this code doesn't work and my logcat in eclipse isn't working.
Can anyone shed some light? Thanks.
Click to expand...
Click to collapse
First of all, a bracket is missing (red one).
You need to do any root action using a Linux shell. You can execute Linux command line things from that.
For your needs this would be:
Code:
su
ls /data/data
You can do that using RootTools. For that, read these instructions: http://code.google.com/p/roottools/wiki/Usage
Then parse the output.

[Q]What is the method name of this code block?

Hey guys I can't figure out the method name of this code block.
There are 2 more methods jus before it with the same "public BatteryMeterView".
the part in red what I want to change. Am using xposed code for it. Plz help asap.
Code:
public BatteryMeterView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
final Resources res = context.getResources();
TypedArray levels = res.obtainTypedArray(R.array.batterymeter_color_levels);
TypedArray colors = res.obtainTypedArray(R.array.batterymeter_color_values);
final int N = levels.length();
mColors = new int[2*N];
for (int i=0; i<N; i++) {
mColors[2*i] = levels.getInt(i, 0);
mColors[2*i+1] = colors.getColor(i, 0);
}
levels.recycle();
colors.recycle();
mShowPercent = ENABLE_PERCENT && 0 != Settings.System.getInt(
[COLOR=Red][B]context.getContentResolver(), "status_bar_show_battery_percent", 0);[/B][/COLOR]
mWarningString = context.getString(R.string.battery_meter_very_low_overlay_symbol);
mFramePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mFramePaint.setColor(res.getColor(R.color.batterymeter_frame_color));
mFramePaint.setDither(true);
mFramePaint.setStrokeWidth(0);
mFramePaint.setStyle(Paint.Style.FILL_AND_STROKE);
mFramePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_ATOP));
mBatteryPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mBatteryPaint.setDither(true);
mBatteryPaint.setStrokeWidth(0);
mBatteryPaint.setStyle(Paint.Style.FILL_AND_STROKE);
mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
[COLOR=Red][B] mTextPaint.setColor(0xFFFFFFFF);[/B][/COLOR]
Typeface font = Typeface.create("sans-serif-condensed", Typeface.NORMAL);
mTextPaint.setTypeface(font);
mTextPaint.setTextAlign(Paint.Align.CENTER);
mWarningTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mWarningTextPaint.setColor(mColors[1]);
font = Typeface.create("sans-serif", Typeface.BOLD);
mWarningTextPaint.setTypeface(font);
mWarningTextPaint.setTextAlign(Paint.Align.CENTER);
mChargeColor = getResources().getColor(R.color.batterymeter_charge_color);
mBoltPaint = new Paint();
mBoltPaint.setAntiAlias(true);
mBoltPaint.setColor(res.getColor(R.color.batterymeter_bolt_color));
mBoltPoints = loadBoltPoints(res);
setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}

SArnab©® said:
Hey guys I can't figure out the method name of this code block.
There are 2 more methods jus before it with the same "public BatteryMeterView".
the part in red what I want to change. Am using xposed code for it. Plz help asap.
Click to expand...
Click to collapse
Well the method is the constructor of the View, so it's name is exactly
Code:
BatteryMeterView(Context context, AttributeSet attrs, int defStyle)[\CODE]
Make sure you have the parameters as well since Java methods are only identical if they have the same return type, name and parameters. Not so sure how you would hook that method with xposed since I never did anything with it, but my guess would be to just copy the code from here to the method that runs before the hooked method, and then don't call that method at all. That way your method is larger but as the variables which you want to change are initialized right there it's the only way to do it.