Module: LastError

Defined in:
lib/vr/sysmod.rb

Constant Summary collapse

GetLastError =

LastError

This is for handling LastError.

Class Methods

--- set(ecode) Sets lasterror code as ((|ecode|)). --- code --- get Gets last error code. --- code2msg(ecode,msgarg=0) Get the error message of ((|ecode|)). ((|msgarg|)) is optional argument for message formatting. --- message(arg=0) Returns last error message.

Win32API.new('kernel32','GetLastError','V','L')
SetLastError = 
Win32API.new('kernel32','SetLastError','L','V')
FormatMessage = 
Win32API.new('kernel32','FormatMessageA','LPLLPLP','L')
FORMAT_MESSAGE_FROM_SYSTEM = 
4096

Class Method Summary collapse

Class Method Details

.code ⇒ Object 



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# File 'lib/vr/sysmod.rb', line 229

def self.code
  GetLastError.call()
end

.code2msg(scode, msg = 0) ⇒ Object 



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# File 'lib/vr/sysmod.rb', line 234

def self.code2msg(scode,msg=0)
  buffer = " "*(2048)
  len = FormatMessage.call FORMAT_MESSAGE_FROM_SYSTEM,0,scode,0,
                           buffer,buffer.size,msg
  buffer[0,len]
end

.get ⇒ Object 



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# File 'lib/vr/sysmod.rb', line 232

def self.get() self.code end

.message(msg = 0) ⇒ Object 



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# File 'lib/vr/sysmod.rb', line 241

def self.message(msg=0)
  self.code2msg(self.code,msg)
end

.set(ecode) ⇒ Object 



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# File 'lib/vr/sysmod.rb', line 225

def self.set(ecode)
  SetLastError.call(ecode)
end