Windows core programming Chapter 4 Process

Obtain the current directory:
DWORD getfullpathname (pctstr pszfile, DWORD cchpath, ptstr pszpath, ptstr * ppszfilepart );

 

Obtain the current directory of drive C
Tchar szcurdir [max_path];
Getfullpathname ("C", max_path, szcurdir, null );

Obtain the system version:
Bool getversion (posversioninfo pversioninformation );

Create a process function:
Bool CreateProcess
{
Pctstr pszapplicationname; // name of the executable file used by the new process
Ptstr pszcommandline; // command line string passed to the new process
Psecurity_attributes psaprocess; // creates a process's Security Attribute. The default value is null.
Psecurity_attributes psathread; // Security Attribute of the Creation thread. The default value is null.
Bool binterithandle; // whether it can be inherited
DWORD fdwcreate; // how to create a process
Pvoid pvenvironment; // specifies the memory block that contains the environment string to be used by the new process.
Pctstr pszcurdir; // specifies the parent process directory. If the value is null, the default directory is used.ProgramRunning directory
Pstartupinfo psistartinfo; // point to the startupinfo structure, stack, preferably first
Startupinfo Si = {sizeof (SI )};
Getstartupinfo (& Si); (initialization); otherwise, useless information will be passed to CreateProcess, resulting in uncertainty.
Pprocess_infomation ppiprocinfo // process_information structure, which records the thread ID and sub-process ID of the process.
};

Returns true if the process is successfully created. // if no DLL is found for the created process, true is returned;

Pszcommandline is recommended not to input constants. VC will put the passed strings into the read-only memory, for example:
CreateProcess (null, _ T ("Notepad"), null, null, false, 0, null, null, & Si, & PI );
Will run the error (after self-testing, GCC will not run the error, vs2005 will, the book said that early VC will not be wrong)

Preferably:
Tchar szcommandline [] = _ T ("Notepad ");
CreateProcess (null, szcommandline, null, null, false, 0, null, null, & Si, & PI );
The Notepad program will be opened.

Tchar szpath [] = "WordPad readme. txt ";
CreateProcess ("C: \ windows \ system32 \ notepad. EXE", szpath, null, null, false, 0, null, null, & Si, & PI );
Open the Notepad program and input the szpaht command.

Fdwcreate specifies how to create a new process. You can also set the priority.
Ebug_process: When a sub-process has something to do, it must tell the parent process

Debug_only_this_process: similar to ebug_process, but only tells the specific time when a sub-process is created.

Create_suincluded: The child process is created and the parent process is suspended.

Detached_process: Organizes access to the console of the parent process based on the GUI process, and sends the output to the new console window.

Create_new_console: Create a new process and create a console for the new process. It cannot be used with deta_process at the same time; otherwise, an error is generated.

Create_no_window: do not create a console window for a new process

Create_new_process_group: after multiple processes are created, if you press Ctrl + C, all process users are notified to press Ctrl + C;

Create_default_error_mode: the new process does not inherit the incorrect usage mode of the parent process.

Create_separate_wow_vdm: when Windows 2000 runs 16 bits, create a separate dos Virtual Machine

Create_shared_wow_vdm: when running a 16-bit program in Windows 2000, all 16-bit programs run on a separate dos virtual machine, but the Registry sharing can be changed, unless create_shparate_wow_vdm is set.

Create_forcedos: forces the system to run MOS-DOS applications embedded with 16-bit OS/2 applications

Create_breakaway_from_job: Use jinheng in the job to generate a new process associated with the job

Terminate a running process:
1. Main thread function return (the best method)
2. The thread in the process calls exitprocess (preferably not );
3. threads in another process (preferably not );
4. All threads manually terminate

Bool terminateprocess (handle hprocess, uint fuexitcode );
Difference from eixtprocess: any thread can call terminateprocess

Obtain the exited process that has been withdrawn.Code
Bool getexitcodeprocess (handle hprocess, pdword pdwexitcode );

Closehandle (handle hprocess); It is important to close unused handles.

DWORD waitforsingleobject (handle hobject, DWORD dwtimeout );
Wait for hobject to stop running

Pvoid getmodulepreferredbaseaddr (DWORD dwprocessid, pvoid pvmoduleremote );
Accept the address of a process ID and Process Module