C # Make the Registry effective immediately after modification

The modification takes effect without restarting the computer.

Const int wm_settingchange = 0x001a;

Const int hwnd_broadcast = 0 xFFFF;

Intptr result1;

Public Enum sendmessagetimeoutflags: uint

{

Smto_normal = 0x0000,

Smto_block = 0x0001,

Smto_abortifhung = 0x0002,

Smto_notimeoutifnothung = 0x0008

}

[Dllimport ("user32.dll", setlasterror = true, charset = charset. Auto)]

Public static extern intptr sendmessagetimeout (

Intptr when whandle,

Uint MSG,

Intptr wparam,

Intptr lparam,

Sendmessagetimeoutflags flags,

Uint timeout,

Out intptr result

);

Public void changereg ()

{

// Notify all EnabledProgramRegistry to modify

Sendmessagetimeout (New intptr (hwnd_broadcast), wm_settingchange, intptr. Zero, intptr. Zero, sendmessagetimeoutflags. smto_normal, 1000, out result1 );

}