19. Windows API system information

I. Basic Concepts

GEtversionex

Getsysteminfo

Getwindowsdirectory

GetsystemDirectory

Getting system information[2]

Time[3]

Registry[4 ~ 6, 1: p291]

Example: traverse subkeys and key values

Ii. Others

1. Set a self-startingProgram

There are many methods for self-starting a program. The Registry is one of the most commonly used methods. Multiple keys have this function. The most common options are HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run. You only need to set the key value of the REG_SZ type, set the value to the program path to start the program automatically when the system starts. You can set the HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ runonce key value if you only need to start it once at the next system startup.

2. Set the debugger (any program) started with the program startup)

It can also be used to set the self-starting Program

HKEY_LOCAL_MACHINE \ softwareymicrosoft, \ Windows NT \ CurrentVersion \ Image File Execution options sub-keys can be used to specify to start the debugger. For example, unzip OS _info.exe, create a sub-key named OS _info.exe under "image fileexecution options]", and then create a key value named "Debugger". The type is REG_SZ. The data is the command line for starting the debugger. Here, it points to windbg: \ Program Files \ debugging tools forwindows \ windbg.exe (which can be an executable file, such as notepad.exe? when loading the key name program module, the application specified by the "Debugger" key value is started first, and the executable program pointed to by the key name as the parameter ). When OS _info.exe is run, windbg is started for debugging.

3. Real-time Debugger for program crash

You can use the registry to specify the Real-Time debugger, for example, windbg or ollydbg. Specify the Real-Time debugger method as the "Debugger" key value of the registry key "HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ AeDebug.

Reference

[1] proficient in Windows API functions, interfaces, and programming instances

[2]Http://msdn.microsoft.com/en-us/library/ms724426%28VS.85%29.aspx

[3]Http://msdn.microsoft.com/en-us/library/ms724962%28VS.85%29.aspx

[4]Http://www.cnblogs.com/mydomain/archive/2010/10/29/1864013.html

[5]Http://www.cnblogs.com/mydomain/archive/2010/10/18/1855124.html

[6]Http://msdn.microsoft.com/en-us/library/ms724871%28VS.85%29.aspx