Difference between revisions of "Lua:byteTableToDword"

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'''function''' byteTableToDword(''Table'') ''':''' integer
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[[Category:Lua]]
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'''function''' byteTableToDword(''Table'', [''Signed'']) ''':''' Number
  
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Converts a byte table to a DWORD (4 bytes), interpreting them as an integer.
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Converts a table of bytes to a 32-bit dword (integer).
  
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===Function Parameters===
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=== Function Parameters ===
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{|width="85%" cellpadding="10%" cellspacing="0" border="0"
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{|width="85%" cellpadding="10%" cellpadding="5%" cellspacing="0" border="0"
 
 
!align="left"|Parameter
 
!align="left"|Parameter
 
!align="left"|Type
 
!align="left"|Type
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|-
 
|-
 
|Table
 
|Table
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|table
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|Table
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|The table of bytes to convert
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|A table containing the bytes to convert (least significant byte first).
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|-
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|Signed
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|Boolean (optional)
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|If true, returns a signed 32-bit integer. If false or omitted, returns an unsigned integer.
 
|}
 
|}
  
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===Returns===
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Number — The resulting 32-bit dword (integer).
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===Explanation===
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The function takes a table of bytes (e.g., <code>{0x78, 0x56, 0x34, 0x12}</code>) and combines them into a single 32-bit value. 
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The first element is the least significant byte (little-endian order). 
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If <code>Signed</code> is true, the result is interpreted as a signed integer.
  
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== Examples ==
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For example, <code>byteTableToDword({0x78, 0x56, 0x34, 0x12})</code> returns <code>0x12345678</code> (305419896 in decimal).
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Code:
 
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  local bt = { 0x64, 0x00, 0x00, 0x00 }
 
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  local value = byteTableToDword(bt)
 
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  print(string.format('0x%0X', value))
 
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  print(value)
 
  
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Output:
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===Examples===
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  0x64
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<pre>
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  100
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local dword = byteTableToDword({0x78, 0x56, 0x34, 0x12})
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print(dword) -- Output: 305419896
  
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-- Using signed interpretation
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local signedDword = byteTableToDword({0xFF, 0xFF, 0xFF, 0xFF}, true)
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print(signedDword) -- Output: -1
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</pre>
  
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== See also ==
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{{LuaSeeAlso}}
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* [[Lua]]
 
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* [[Help_File:Script engine|Script engine]]
 
  
 
=== Related Functions ===
 
=== Related Functions ===
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* [[readBytes]]
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{{ReadWriteMemory}}
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* [[readInteger]]
 
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* [[readQword]]
 
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* [[readPointer]]
 
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* [[readFloat]]
 
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* [[readDouble]]
 
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* [[readString]]
 
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* [[writeBytes]]
 
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* [[writeInteger]]
 
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* [[writeQword]]
 
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* [[writeFloat]]
 
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* [[writeDouble]]
 
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* [[writeString]]
 
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* [[readBytesLocal]]
 
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* [[readIntegerLocal]]
 
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* [[readQwordLocal]]
 
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* [[readPointerLocal]]
 
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* [[readFloatLocal]]
 
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* [[readDoubleLocal]]
 
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* [[readStringLocal]]
 
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* [[writeBytesLocal]]
 
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* [[writeIntegerLocal]]
 
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* [[writeQwordLocal]]
 
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* [[writeFloatLocal]]
 
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* [[writeDoubleLocal]]
 
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* [[writeStringLocal]]
 
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* [[wordToByteTable]]
 
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* [[dwordToByteTable]]
 
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* [[qwordToByteTable]]
 
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* [[floatToByteTable]]
 
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* [[doubleToByteTable]]
 
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* [[stringToByteTable]]
 
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* [[wideStringToByteTable]]
 
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* [[byteTableToWord]]
 
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* [[byteTableToQword]]
 
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* [[byteTableToFloat]]
 
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* [[byteTableToDouble]]
 
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* [[byteTableToString]]
 
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* [[byteTableToWideString]]
 

Latest revision as of 17:38, 11 July 2025

function byteTableToDword(Table, [Signed]) : Number

Converts a table of bytes to a 32-bit dword (integer).

Function Parameters[edit]

Parameter Type Description
Table Table A table containing the bytes to convert (least significant byte first).
Signed Boolean (optional) If true, returns a signed 32-bit integer. If false or omitted, returns an unsigned integer.

Returns[edit]

Number — The resulting 32-bit dword (integer).

Explanation[edit]

The function takes a table of bytes (e.g., {0x78, 0x56, 0x34, 0x12}) and combines them into a single 32-bit value. The first element is the least significant byte (little-endian order). If Signed is true, the result is interpreted as a signed integer.

For example, byteTableToDword({0x78, 0x56, 0x34, 0x12}) returns 0x12345678 (305419896 in decimal).

Examples[edit]

local dword = byteTableToDword({0x78, 0x56, 0x34, 0x12})
print(dword) -- Output: 305419896

-- Using signed interpretation
local signedDword = byteTableToDword({0xFF, 0xFF, 0xFF, 0xFF}, true)
print(signedDword) -- Output: -1

See also[edit]

Related Functions[edit]



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