What does GetLastError return?
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What does GetLastError return?
GetLastError() returns an integer value, not a text message. there use to be an exe error lookup in the tool section in visual studio which do this pretty well when you only need message from error for debugging.
What is GetLastError?
The GetLastError function returns the calling thread’s last-error code value. The last-error code is maintained on a per-thread basis. Multiple threads do not overwrite each other’s last-error code. DWORD GetLastError(VOID)
How GetLastError works?
You should call the GetLastError function immediately when a function’s return value indicates that such a call will return useful data. That is because some functions call SetLastError with a zero when they succeed, wiping out the error code set by the most recently failed function.
How do you use the GetLastError function?
Not every function sets the last error code upon failure (or success). So it is possible to call GetLastError after a function succeeds and have it return a misleading error code. You only need to call it after a function fails.
What is WriteProcessMemory?
WriteProcessMemory copies the data from the specified buffer in the current process to the address range of the specified process. Any process that has a handle with PROCESS_VM_WRITE and PROCESS_VM_OPERATION access to the process to be written to can call the function.
How do I get error messages in C++?
The perror() function in C++ prints the error message to stderr based on the error code currently stored in the system variable errno.
What is Queueuserapc?
The queuing of an APC is a request for the thread to call the APC function. The operating system issues a software interrupt to direct the thread to call the APC function. When a user-mode APC is queued, the thread is not directed to call the APC function unless it is in an alertable state.
How do you show error messages in code blocks?
To check for errors in the current block of code:
- Do one of the following: On the Program menu, select Check for Errors.
- One of the following dialogs is displayed:
- Select one of the errors from the list, then press the Close button.
What is runtime error in C++ with example?
Runtime Error: A runtime error in a program is an error that occurs while the program is running after being successfully compiled.
What is Getmodulehandlew?
The GetModuleHandle function returns a handle to a mapped module without incrementing its reference count. However, if this handle is passed to the FreeLibrary function, the reference count of the mapped module will be decremented.
What is CreateRemoteThread?
The CreateRemoteThread function causes a new thread of execution to begin in the address space of the specified process. The thread has access to all objects that the process opens. Prior to Windows 8, Terminal Services isolates each terminal session by design.
What is APC injected?
APC injection is a method of executing arbitrary code in the address space of a separate live process. APC injection is commonly performed by attaching malicious code to the APC Queue of a process’s thread. Queued APC functions are executed when the thread enters an alterable state.
What is process hollowing detected?
Process hollowing is a security exploit in which an attacker removes code in an executable file and replaces it with malicious code. The process hollowing attack is used by hackers to cause an otherwise legitimate process to execute malicious code.
How do you fix Compiler errors in CodeBlocks?
On the Code::Blocks menu, go to “Settings”, next click on “Compiler and Debugger…”. This will open the “Compiler and debugger settings dialog”. Under “Selected compiler” select the name of the compiler you are using. For most of you it will be “GNU GCC Compiler”.
Why is my CodeBlocks not working?
Make sure you have installed the GCC version based setup from the official website of Codeblocks, Since the earlier versions were not provided with GCC and Other compilers hence the end user had to download and setup separately, Which again seems to be an hassle of its own when you are too excited to start coding.
How do you fix a run time error in C++?
How to Fix a Runtime Error
- Restart the computer.
- Update the program to its latest version.
- Fully delete the program, and then reinstall it.
- Install the latest Microsoft Visual C++ Redistributable package.
- Use SFC scannow to repair corrupted Windows files.
- Run System Restore to return your computer to a previous state.
