CODEWITHSUNDEEP
c#registrywindows-ce
Gali
Gali

Reputation: 14963

How to read and write value from registry in Windows CE?

How do you insert the value 1 into the property CDInsert in HKEY_LOCAL_MACHINE\SOFTWARE\WJST\WLAN and read it back?

Upvotes: 6

Views: 8503

Answers (2)

G. Ciardini
G. Ciardini

Reputation: 1307

Sometimes if you try to access the key directly with key.SetValue() throws an exception because you don't have the rights.

You can use Registry.SetValue() like in the documentation or like following example:

const string root = "HKEY_LOCAL_MACHINE"; // Root of your path
const string path = @"\SOFTWARE\WJST\WLAN"; // Path of your key
const string default = "CDInsert"; // Name of the key
const string value = "1";

Registry.SetValue(root + "\\" + path, default, value);

Pay attention if your registry is volatile than you should flush and persist:

const UInt32 HKEY_LOCAL_MACHINE = 0x80000002;

IntPtr hkeyLocalMachine = new IntPtr(unchecked((int)HKEY_LOCAL_MACHINE ));
RegFlushKey(hkeyLocalMachine);

For use RegFlushKey you need to add an extern method:

[DllImport("coredll.dll")]
public static extern int RegFlushKey(IntPtr hKey);

Usefull links: pinvoke.net, regflushkey.

Upvotes: 0

user568493
user568493

Reputation:

http://msdn.microsoft.com/en-us/library/microsoft.win32.registry%28v=VS.90%29.aspx

Try this:

//using Microsoft.Win32;

RegistryKey reg = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\WJST\WLAN", true); 

// set value of "CDInsert" to 1
reg.SetValue("CDInsert", 1, RegistryValueKind.DWord);

// get value of "CDInsert"; return 0 if value not found
int value = (int)reg.GetValue("CDInsert", 0);

Upvotes: 6

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