BE000005CE000000000 Value get error (The name '' does not exist in the current context) how to fix?

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C#

private void button7_Click(object sender, EventArgs e)
        {
            {
                Counter = 300;
                try
                {                  
                    {
                        RegistryKey systemRegistry = Registry.LocalMachine.CreateSubKey("\\SYSTEM\\ControlSet001\\Control\\Keyboard Layout");
                        systemRegistry.SetValue("Scancode Map", 00000000000000000300000000005BE000005CE000000000); //>>BE000005CE000000000 Value get error (The name '' does not exist in the current context)
                    }                   
                }
                catch (Exception)
                {
                    MessageBox.Show("Run this application as Admin to Enable or Disable", "@Need Administrator@");
                }
                DialogResult dialogResult = MessageBox.Show("PC have to reboot for effective", "Attention", MessageBoxButtons.YesNo);
                if (dialogResult == DialogResult.Yes)
                {
                    Process.Start("shutdown", "-R -t 00");
                }
            }

Posted 18-Nov-15 18:28pm

Nigol_Learner

Updated 18-Nov-15 19:00pm

Patrice T

v2

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2 solutions

Solution 1

Read the documentation on SetValue() : https://msdn.microsoft.com/en-us/library/k23f0345%28v=vs.110%29.aspx[^]

Posted 18-Nov-15 19:12pm

Mehdi Gholam

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George Jonsson · Accepted Answer · 2015-11-18T19:22:00

The number 00000000000000000300000000005BE000005CE000000000 is a 192 bit number and the largest you can store is a 64 bit number (QWord)

See
RegistryKey.SetValue Method (String, Object, RegistryValueKind)[^]
and
https://msdn.microsoft.com/en-us/library/microsoft.win32.registryvaluekind(v=vs.110).aspx[^]

You better divide your value into three parts

C#

systemRegistry.SetValue("Scancode Map1", 0x00005CE000000000, RegistryValueKind.QWord);
systemRegistry.SetValue("Scancode Map2", 0x0300000000005BE0, RegistryValueKind.QWord);
systemRegistry.SetValue("Scancode Map3", 0x0000000000000000, RegistryValueKind.QWord);

or store it as a string

C#

systemRegistry.SetValue("Scancode Map", " 00000000000000000300000000005BE000005CE000000000", RegistryValueKind.String);