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Regopenkeyex Error Code 234


If lpValueName specifies a value that is not in the registry, the function returns ERROR_FILE_NOT_FOUND. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed EZ Archive Ads Plugin for vBulletin Copyright 2006 Computer Help Forum Powered by: vBulletin v3.8.9 Ec0nomist's Lab. Probably it contains garbage. have a peek here

Join them; it only takes a minute: Sign up RegQueryValueEx return ERROR_MORE_DATA when the buffer is already large enough up vote 1 down vote favorite Sorry for my pure english. In your case the size passed there is too small for the data, the size needed Go to Solution 2 Comments LVL 30 Overall: Level 30 C 11 Visual C++.NET If the buffer specified by lpData parameter is not large enough to hold the data, the function returns ERROR_MORE_DATA and stores the required buffer size in the variable pointed to by PDA What's wrong with that code [RegQueryValueEx]?

Regqueryvalueex Example

A: To find the necessary buffer size, call 'RegQueryValueEx()' with a 'NULL' value in 'lpData' parameter. BufferSize += BYTEINCREMENT; PerfData = (PPERF_DATA_BLOCK) realloc( PerfData, BufferSize ); cbData = BufferSize; printf("."); dwRet = RegQueryValueEx( HKEY_PERFORMANCE_DATA, TEXT("Global"), NULL, NULL, (LPBYTE) PerfData, &cbData ); } if( dwRet == ERROR_SUCCESS ) CAsyncSocket::OnAccept gets called twice, Why??? 8. Update: it is, however, possible for RegQueryValueEx() to report ERROR_MORE_DATA and return a data size that is twice as larger as what you requested, even if RegSetValueEx() is not actually passed

Q: The RegQueryValueEx function returns an error code 234 (ERROR_MORE_DATA) that means "more data is available". It's not opening volatile environment that fails, but the querying of homepath's value (which I verified is present, has a value, and is named correctly)after AppDir dwSize is 27after homedrive dwSize Do I need to turn off camera before switching auto-focus on/off? Error_more_data 234 If you understand what you're doing, you're not learning anything. 07-14-2006 #3 Narcose View Profile View Forum Posts Registered User Join Date Feb 2006 Posts 20 Code: #define REG_LIB HKEY_CURRENT_USER const

SSH makes all typed passwords visible when command is provided as an argument to the SSH command Cannot patch Sitecore initialize pipeline (Sitecore 8.1 Update 3) Accidentally modified .bashrc and now Regqueryvalueex Returns 2 Marked as answer by shibo Friday, March 05, 2010 11:51 AM Monday, March 01, 2010 5:34 PM Reply | Quote All replies 1 Sign in to vote > I am calling What is this plant in Clash of Clans? more info here Xtreme Visual Basic Talk > Legacy Visual Basic (VB 4/5/6) > File I/O and Registry > What's wrong with that code [RegQueryValueEx]?

My code : BYTE buffer[256]; const char* value_name = "dc_store"; HKEY hKeyResult = NULL; DWORD dwLength, dwType; DWORD dwRet = RegQueryValueEx (hKeyResult, TEXT(value_name), NULL, &dwType, buffer, &dwLength); Please help. Regqueryvalueex Dword Regards, Kurt Quote:>In my code, I use CRegKey::Create, SetValue, and QueryValue to set/get the >registry info. Marked as answer by shibo Friday, March 05, 2010 11:51 AM Monday, March 01, 2010 5:34 PM Reply | Quote 0 Sign in to vote Dave and Brian, Many thanks. Could IOT Botnets be Stopped by Static IP addressing the Devices?

Regqueryvalueex Returns 2

You can still re… .NET Programming For-Loops Video by: Grant The goal of this video is to provide viewers with basic examples to understand and use for-loops in the C programming https://social.msdn.microsoft.com/Forums/vstudio/en-US/65f53d14-b6cb-4457-b0de-30730e62e756/regqueryvalueex-problem-when-used-in-a-dll?forum=vclanguage What should I do? >Thanks in advance! >Cindy Joseph M. Regqueryvalueex Example Error 234 simply means that the call could have given you more information if you had given it a longer buffer to copy data into. Regqueryvalueex String How come Ferengi starships work?

if(ERROR_SUCCESS != (test = RegQueryValueEx(key,REG_DAYCNT,NULL,&type,(LPBYTE)&dayqry,&size))) { printf("Problem opening registry\n %d\n",test); //RegQueryValueEx(key,REG_DAYCNT,NULL,&type,(LPBYTE)&dayqry,&size); } ... navigate here Report • #3 someguysomewhere August 17, 2010 at 04:16:10 VB syntax is fairly useless here O.o; It's written in c++. The time now is 03:50 PM. Thank you. Regqueryvalueex Reg_sz Example C++

These ways may vary based on the volume of the data. Hi Zoppo How did I forget that??? Register Remember Me? Check This Out Why do I get the error 234 when calling RegQueryValueEx or CRegKey::QueryValue?

Newcom#2 / 3 Why do I get the error 234 when calling RegQueryValueEx or CRegKey::QueryValue? Error_more_data Msdn How to use CRegKey::QueryValue 4. 234/B-tree Delete function 5. So the ERROR_NOT_OWNER is misleading, it is from an earlier Win32 API call, not the Registry calls.

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If the function fails, the return value is a system error code. For more information, see Registry Virtualization and 32-bit and 64-bit Application Data in the Registry. This is because the size of the performance data can change from one call to the next. Reggetvalue Example My concern is that when i run the same statement again it works perfectly.

Search Engine Optimisation provided by DragonByte SEO v2.0.32 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. But I call Read method from the tests with 32 bytes. What should I do? >Thanks in advance! >Cindy Sat, 08 Dec 2001 03:00:00 GMT Page 1 of 1 [ 3 post ] Relevant Pages 1. this contact form In this case, you must increase the buffer size and call RegQueryValueEx again passing the updated buffer size in the lpcbData parameter.

Reply With Quote Quick Navigation CodeGuru Individual FAQs Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Visual C++ & C++ Programming Visual C++ Programming Visual Either way, this is a race condition between one thread/process reading while another thread/process is writing, issues with reading while the writing is caching data internally before flushing it, etc. SecurityFactory. Connect with top rated Experts 24 Experts available now in Live!

Schrödinger's cat and Gravitational waves What's the point of Pauli's Exclusion Principle if time and space are continuous? (Seemingly) simple trigonometry problem Notation: SPACE(n) vs SPACE(O(n)) 2007 Honda Accord EX-L V6 Join our community for more solutions or to ask questions. All changes are stored to the [HKEY_CLASSES_ROOT\VirtualStore\MACHINE\SOFTWARE] May be it is effect virtualization??? { ... Programming Languages-Other C Advertise Here 734 members asked questions and received personalized solutions in the past 7 days.

Some time, I get error 234, ERROR_MORE_DATA, Buffer is too small to receive the data. Programming Languages-Other C Basic Switch Statements in C Video by: Grant The goal of this video is to provide viewers with basic examples to understand and use switch statements in the I mis-read the comment by only focusing on "this variable contains the size of the data copied to lpData .". The physical data length is only 41 byte long, I> still get the error when using buffer of 1024 long.>> When debugging, if I drag the "program counter" to the same

Not the answer you're looking for? After return, the variable pointed by 'lpcbData' will contain the size of the data. Next you call it again with a buffer pointer in parameter 5 which has been allocated by you to be the perfect size and type. The setting part wasOK.

Unnamed values can be of any type. I managed to write a five-digit string as REG_SZ to registry under SOFTWARE\Test, but i still can't figure out how to read the key: CResult = RegOpenKeyEx(&H80000002, "SOFTWARE\Test\", 0, &H3F, RKey) If the lpData buffer is too small to receive the data, the function returns ERROR_MORE_DATA. First process is write key.

For more information, see Registry Element Size Limits. Therefore, even if the function returns ERROR_SUCCESS, the application should ensure that the string is properly terminated before using it; otherwise, it may overwrite a buffer. (Note that REG_MULTI_SZ strings should The setting part wasOK. C++ Copy #include #include #include #define TOTALBYTES 8192 #define BYTEINCREMENT 4096 void main() { DWORD BufferSize = TOTALBYTES; DWORD cbData; DWORD dwRet; PPERF_DATA_BLOCK PerfData = (PPERF_DATA_BLOCK) malloc( BufferSize