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Posted by: D.Viddy

Let's all post some of our favorite code snippets for any language we choose. Be sure to label what it does and add any extra info that would be required. I'll start...

[b]Language: Visual Basic 6.0
Purpose: Change the Windows Wallpaper[/b]

[SIZE=1][CODE]Declare Function SystemParametersInfo Lib "user32" Alias "SystemParametersInfoA" _
(ByVal uAction As Long, ByVal uParam As Long, ByVal lpvParam As Any, ByVal fuWinIni As Long As Long

Public Const SPI_SETDESKWALLPAPER = 20

Public Sub ChangePaper(strFilename as string)
Dim lngSuccess As Long

lngSuccess = SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, strFilename, 0)
End Sub[/CODE][/SIZE]
- Please Post...

Posted by: shan

PHP
Alternating talbe row colors.
[PHP]

<?
$usr = "usr";
$pass = "pass";
$db = "database";

mysql_connect(localhost,$usr,$pass);
mysql_select_db($db) or die("Unable to locate database becuase: mysqlerror()");

$qry = ("SELECT * FROM table ORDER by id")or die(mysql_error());
$result = mysql_query($qry);
$numrows = mysql_num_rows($result);

echo "<table width='100%' border=1 cellpadding=2 cellspacing=2>\n";
echo "<tr><th bgcolor='#FFFFFF'><font color='black'>Something</th>
<th bgcolor='#FFFFFF'><font color='black'>Something else</th>
<th bgcolor='#FFFFFF'><font color='black'>Something different</font></th></tr>\n";

$bg = "#000000";
for ($cur = 0; $cur < $numrows; $cur++){
if ($bg == "#000000"){
$bg = "#123456";
}else{
$bg = "#000000";
}
$row = mysql_fetch_array($result);
echo "<tr>\n";
echo "<td bgcolor='$bg'>".$row['something']."</td>\n";
echo "<td bgcolor='$bg'>".$row['somethingelse']."</td>\n";
echo "<td bgcolor='$bg'>".$row['somethingdifferent']."</td>\n";
echo "</tr>\n";
}

print "</table>\n";
mysql_close();
?>
[/php]

Posted by: 臯栽倗x

Registry Access
(Visual Basic)

[CODE]'This program needs 3 buttons
Const REG_SZ = 1 ' Unicode nul terminated string
Const REG_BINARY = 3 ' Free form binary
Const HKEY_CURRENT_USER = &H80000001
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
Private Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
Function RegQueryStringValue(ByVal hKey As Long, ByVal strValueName As String) As String
Dim lResult As Long, lValueType As Long, strBuf As String, lDataBufSize As Long
'retrieve nformation about the key
lResult = RegQueryValueEx(hKey, strValueName, 0, lValueType, ByVal 0, lDataBufSize)
If lResult = 0 Then
If lValueType = REG_SZ Then
'Create a buffer
strBuf = String(lDataBufSize, Chr$(0))
'retrieve the key's content
lResult = RegQueryValueEx(hKey, strValueName, 0, 0, ByVal strBuf, lDataBufSize)
If lResult = 0 Then
'Remove the unnecessary chr$(0)'s
RegQueryStringValue = Left$(strBuf, InStr(1, strBuf, Chr$(0)) - 1)
End If
ElseIf lValueType = REG_BINARY Then
Dim strData As Integer
'retrieve the key's value
lResult = RegQueryValueEx(hKey, strValueName, 0, 0, strData, lDataBufSize)
If lResult = 0 Then
RegQueryStringValue = strData
End If
End If
End If
End Function
Function GetString(hKey As Long, strPath As String, strValue As String)
Dim Ret
'Open the key
RegOpenKey hKey, strPath, Ret
'Get the key's content
GetString = RegQueryStringValue(Ret, strValue)
'Close the key
RegCloseKey Ret
End Function
Sub SaveString(hKey As Long, strPath As String, strValue As String, strData As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Save a string to the key
RegSetValueEx Ret, strValue, 0, REG_SZ, ByVal strData, Len(strData)
'close the key
RegCloseKey Ret
End Sub
Sub SaveStringLong(hKey As Long, strPath As String, strValue As String, strData As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Set the key's value
RegSetValueEx Ret, strValue, 0, REG_BINARY, CByte(strData), 4
'close the key
RegCloseKey Ret
End Sub
Sub DelSetting(hKey As Long, strPath As String, strValue As String)
Dim Ret
'Create a new key
RegCreateKey hKey, strPath, Ret
'Delete the key's value
RegDeleteValue Ret, strValue
'close the key
RegCloseKey Ret
End Sub
Private Sub Command1_Click()
Dim strString As String
'Ask for a value
strString = InputBox("Please enter a value between 0 and 255 to be saved as a binary value in the registry.", App.Title)
If strString = "" Or Val(strString) > 255 Or Val(strString) < 0 Then
MsgBox "Invalid value entered ...", vbExclamation + vbOKOnly, App.Title
Exit Sub
End If
'Save the value to the registry
SaveStringLong HKEY_CURRENT_USER, "KPD-Team", "BinaryValue", CByte(strString)
End Sub
Private Sub Command2_Click()
'Get a string from the registry
Ret = GetString(HKEY_CURRENT_USER, "KPD-Team", "BinaryValue")
If Ret = "" Then MsgBox "No value found !", vbExclamation + vbOKOnly, App.Title: Exit Sub
MsgBox "The value is " + Ret, vbOKOnly + vbInformation, App.Title
End Sub
Private Sub Command3_Click()
'Delete the setting from the registry
DelSetting HKEY_CURRENT_USER, "KPD-Team", "BinaryValue"
MsgBox "The value was deleted ...", vbInformation + vbOKOnly, App.Title
End Sub
Private Sub Form_Load()
'KPD-Team 1998
'URL: [url]http://www.allapi.net/[/url]
'E-Mail: [email]KPDTeam@Allapi.net[/email]
Command1.Caption = "Set Value"
Command2.Caption = "Get Value"
Command3.Caption = "Delete Value"
End Sub
[/CODE]

Posted by: raylu

This code screws up your computer when placed into IE's address bar when JavaScript is enabled deleted...

Please do not post destructive code.

Note: this forum adds spaces between java and script...take thouse out.

Posted by: Fahim

do any of you know aboout the registry editor

Posted by: Jack

See 臯栽倗x's post for the registry edit functions.

Posted by: darkninja

Javascript
The never ending Prompt Alert

NOTE : You may have to end your explorer window to get rid of this!

[CODE]
<script language="javascript">
<!--
while (1) {
alert("AAARRGHHH!!");
}
[/CODE]