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Createfile Com Port Error 5


If you want to understand more then check out the links below. How might a government pass a law without the population knowing? A word for the moment when you realise technology has outpaced you Is a world with two different types of air possible? If you want to restart your Personal computer, see Shutting down (turning off) your Pc, which makes it slumber or hibernating it.

If FILE_FLAG_OPEN_REPARSE_POINT is not specified: If an existing file is opened and it is a symbolic link, the handle returned is a handle to the target. The problems with comports is that all devices you attach to your serial port must match in terms of the baud rate settings and flow rates or any error correction protocals You could create your own HID driver that sends up your own HID reports, but if the software that is reading those reports is looking for a specific device (product/vendor ID) Thanks, Sevak Nov 3 '08 #1 Post Reply Share this Question 11 Replies Expert 100+ P: 2,298 donbock Try adding a colon to the filename: "COM1:".

Getlasterror Code 5

up vote 2 down vote favorite I found this question somewhere on internet now facing same problem. When an application is finished using the object handle returned by CreateFile, use the CloseHandle function to close the handle. Troubleshooting c++ createfile serial port Windows XP, Vista, 7, 8 & 10 Simply because this chance is so higher, we hugely suggest that you make use of a trusted registry cleaner

This attribute indicates that file data is physically moved to offline storage. FILE_FLAG_OPEN_NO_RECALL 0x00100000 The file data is requested, but it should continue to be located in remote storage. machine learning LinearModelFit with Dataset Cycles, shade based on proximity to another object's geometry Why is nuclear waste more dangerous than the original nuclear fuel? Error_access_denied If you are saying to do it mannually then that is not allowed in my case.

FILE_FLAG_OVERLAPPED 0x40000000 The file or device is being opened or created for asynchronous I/O. Createfile Access Denied See Obtaining and Setting File Information and GetFileInformationByHandle. asked 5 years ago viewed 15034 times active 5 years ago Upcoming Events 2016 Community Moderator Election ends in 3 days Related 6CreateFile() returns INVALID_HANDLE_VALUE but GetLastError() is ERROR_SUCCESS2Named Pipe CreateFile() http://forums.codeguru.com/showthread.php?495545-Opening-device-with-CreateFile-fails-with-error-code-5-ERROR_ACCESS_DENIED Clean createfile error 2 Disk Cleanup The a lot more you employ your computer the extra it accumulates junk files.

For more information, see the Remarks section. Windows Error Code 5 Otherwise, the system caching behaves as specified for each flag. If you run this plan after each day (it could be set up to run instantly) you are able to be assured that your Pc is generally clean, often operating speedy, When opening a volume or floppy disk, the dwShareMode parameter must have the FILE_SHARE_WRITEflag.

Createfile Access Denied

share|improve this answer answered Sep 24 '13 at 8:06 David Heffernan 434k27590959 1.Granting that user sufficient rights. https://social.msdn.microsoft.com/Forums/vstudio/en-US/1048cfa7-428d-47c9-a32b-71bf0a56c3ce/trouble-opening-com-port-with-createfile?forum=vclanguage A synchronous handle behaves such that I/O function calls using that handle are blocked until they complete, while an asynchronous file handle makes it possible for the system to return immediately Getlasterror Code 5 While calling CreateFile(), pass the respective value depending upon the key. 0 Message Author Comment by:JohnSantaFe2011-08-28 Comment Utility Permalink(# a36445394) I ended up creating a case statement based on the Createfile Error 2 Remarks CreateFile was originally developed specifically for file interaction but has since been expanded and enhanced to include most other types of I/O devices and mechanisms available to Windows developers.

Tip  Starting with Windows 10, version 1607, for the unicode version of this function (CreateFileW), you can opt-in to remove the MAX_PATH limitation without prepending "\\?\". Use LogonUser() to log in to the desired user account and get a token for it, then pass that token to ImpersonateLoggedOnUser() to impersonate that user, then call CreateFile() (which will If this flag is not specified, but the file or device has been opened for read access, the function fails. This enables you to access the disk or volume directly, for example such disk metadata as the partition table. Error Getting File Security Getlasterror 5

To open changer device zero in an application that is written in C or C++, use the following file name: "\\\\.\\Changer0". Monday, September 22, 2008 2:03 PM Reply | Quote 0 Sign in to vote The API reference you cite in your first link is for Windows CE (Windows Mobile), not Windows Any other function or easier way to do that? Bayesian vs Frequentist: practical difference w.r.t.

I'm going to give the ideas you both mentioned a try -- I never tried changing the baud rate for the com ports. (Also I did purchase the Icom CI-V interface Getlasterror 6 Windows Server 2008 R2 and Windows Server 2008:  This flag is not supported before Windows Server 2012. This not only frees up system resources, but can have wider influence on things like sharing the file or device and committing data to disk.

If this is true, then if another application already has the file open for write access, then your call to CreateFile will fail, if you specify dwShareMode = FILE_SHARE_READ.

How to repair invalid_handle_value 3. With the success, you will be capable to find out if any person else can also be dealing with this issue and locate troubleshooting methods. For anyone who is acquiring difficulty beginning (booting) your Laptop, see Windows Start-up Settings (including secure manner). Getlasterror C++ Can it be done with DirectX?

Join and Comment By clicking you are agreeing to Experts Exchange's Terms of Use. The bottom line here is that no amount of coding will help you here. Compatibility: Windows 7, 8, Vista, XP Download Size: 6MB Requirements: 300 MHz Processor, 256 MB Ram, 22 MB HDD Limitations: This download is a free evaluation version. Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you!

This way if the application is compiled using UNICODE then the string expands to unicode else it remains a regular ASCII string. Thread Status: Not open for further replies. Forum New Posts FAQ Calendar Forum Actions Mark Forums Read Quick Links Today's Posts View Site Leaders What's New? If you do not specify this flag, all aspects of the client's security context are available.

For more information, see File Streams. Join Now For immediate help use Live now!