// Retrieves the version number of the dotNet Compact Framework installed on the mobile device.
public static string GetCFVersion(string keyPath)
{
string version = null;
CERegistryKey regKey = CERegistry.LocalMachine.OpenSubKey(keyPath);
if (regKey != null)
{
version = "1.0.2268.0"; // Some older versions of CF don't have any values so we can assume this version number
string[] valNames = regKey.GetValueNames();
if (valNames.Length != 0)
{
version = valNames[0].TrimEnd(new char[] { '\0' }); // Store first possible version number
for (int i = 1; i < valNames.Length; i++)
{
string txt = valNames[i];
txt = txt.TrimEnd(new char[] { '\0' });
if (Tools.CompareVersionNumbers(txt, version) == 1)
{
version = txt;
}
}
}
regKey.Close();
}
return(Tools.DisallowNullString(version));
}
/// <summary>
/// Ensures that the app's registry key exists on the mobile device, and returns a reference to it.
/// </summary>
/// <returns></returns>
private static CERegistryKey GetMobileAppKey()
{
string path = @"Software\" + SysInfo.Data.Admin.RegKeyName;
CERegistryKey regKey = null;
// It's possible that the PPC may be disconnected just before calling this method
try
{
regKey = CERegistry.LocalMachine.OpenSubKey(path, true);
if (regKey == null)
{
regKey = CERegistry.LocalMachine.CreateSubKey(path);
}
}
catch (Exception e)
{
// This is just for developer information purposes only. In Release mode we
// really don't need to do anything more than catch the error and continue.
Debug.WriteLine("Error accessing registry: " + e.Message, "CFRegistry.GetMobileAppKey");
}
return(regKey);
}
// Sets the value of "AppPath".
public static void SetAppPath(string path)
{
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
regKey.SetValue("AppPath", path);
regKey.Close();
}
}
// Creates the "StopAskingToInstall" flag and sets it to the specified value.
public static void SetStopAskingToInstall(bool newval)
{
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
regKey.SetValue("StopAskingToInstall", newval ? 1 : 0);
regKey.Close();
}
}
// Sets the value of the current version of Pocket Pollster into the mobile device's registry.
public static void SetAppVersion(string version)
{
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
regKey.SetValue("Version", version);
regKey.Close();
}
}
// Stores the Desktop's date & time onto the mobile computer.
public static void SetNewTime()
{
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
//regKey.SetValue("NewTime", DateTime.Now.ToString());
regKey.SetValue("NewTime", DateTime.Now.ToString("s"));
regKey.Close();
}
}
private void WriteRegistry(CERegistryKey rootKey, string name, object value, params string[] subKeys)
{
CERegistryKey key = rootKey;
foreach (string subKey in subKeys)
{
key = key.CreateSubKey(subKey);
}
key.SetValue(name, value);
}
private object ReadRegistry(CERegistryKey rootKey, string name, params string[] subKeys)
{
CERegistryKey key = rootKey;
foreach (string subKey in subKeys)
{
key = key.CreateSubKey(subKey);
}
return(key.GetValue(name));
}
// This method should work but there is some but with DeleteSubKey that's preventing it from doing so.
// Hopefully a future version of OpenNETCF will correct this problem.
public static void RemoveSoftwareAppsEntry(string companyName, string appName)
{
string path = @"SOFTWARE\Apps\" + companyName + " " + appName;
CERegistryKey regKey = CERegistry.LocalMachine.OpenSubKey(path);
if (regKey != null)
{
regKey.Close();
CERegistry.LocalMachine.DeleteSubKey(path);
}
}
// If Pocket Pollster has been previously installed then this method changes the "Instl"
// key from 1 to 0 so that the confirmation dialog doesn't appear on the mobile device.
public static void ResetInstallFlag()
{
string flagPath = @"SOFTWARE\Apps\IMS Pocket Pollster";
CERegistryKey regKey = CERegistry.LocalMachine.OpenSubKey(flagPath);
// Only continue if the app was previously installed
if (regKey != null)
{
regKey.SetValue("Instl", 0);
regKey.Close();
}
}
// Creates a new "Guid" value here and then sets it in the registry on the mobile device.
public static string SetNewGuid()
{
string guid = System.Guid.NewGuid().ToString();
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
regKey.SetValue("Guid", guid);
regKey.Close();
}
return(guid);
}
// Retrieves the "Guid" value, if it exists.
public static string GetGuid()
{
string guid = null;
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
if (regKey.GetValue("Guid") != null)
{
guid = Tools.DisallowNullString(regKey.GetValue("Guid").ToString());
}
regKey.Close();
}
return(guid);
}
// Sets a special key to inform WCELOAD where to install Pocket Pollster.
public static void SetInstallLocation(string cabLocation, string destPath)
{
string installPath = @"SOFTWARE\Apps\Microsoft Application Installer\Install";
CERegistryKey regKey = CERegistry.LocalMachine.OpenSubKey(installPath);
if (regKey == null)
{
regKey = CERegistry.LocalMachine.CreateSubKey(installPath);
}
if (regKey != null)
{
regKey.SetValue(cabLocation, destPath);
regKey.Close();
}
}
// Retrieves the value of the current version of Pocket Pollster installed on the mobile device.
public static string GetAppVersion()
{
string version = null;
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
if (regKey.GetValue("Version") != null)
{
version = Tools.DisallowNullString(regKey.GetValue("Version").ToString());
}
regKey.Close();
}
return(version);
}
// Checks whether the "StopAskingToInstall" flag exists and is set true.
public static bool InstallPromptOkay()
{
bool okayToProceed = true;
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
if (regKey.GetValue("StopAskingToInstall") != null)
{
string regStr = regKey.GetValue("StopAskingToInstall").ToString();
okayToProceed = (regStr == "1") ? false : true;
}
regKey.Close();
}
return(okayToProceed);
}
// Retrieves the "DataPath" value, if it exists.
public static string GetDataPath()
{
string path = null;
CERegistryKey regKey = GetMobileAppKey();
if (regKey != null)
{
if (regKey.GetValue("DataPath") != null)
{
path = regKey.GetValue("DataPath").ToString();
path = Tools.EnsureFullPath(path);
}
regKey.Close();
}
return(Tools.DisallowNullString(path));
}
// Retrieves the version number of the OpenNET Framework installed on the mobile device.
public static string GetOpenNETCFVersion(string keyPath, string valPrefix)
{
string version = null;
valPrefix = valPrefix.ToLower();
CERegistryKey regKey = CERegistry.LocalMachine.OpenSubKey(keyPath);
if (regKey != null)
{
string[] valNames = regKey.GetValueNames();
for (int i = 0; i < valNames.Length; i++)
{
string txt = valNames[i].ToLower();
txt = txt.TrimEnd(new char[] { '\0' });
if (txt.StartsWith(valPrefix))
{
int pos = txt.IndexOf("version=");
if (pos != -1)
{
txt = txt.Substring(pos + 8);
pos = txt.IndexOf(",");
if (pos == -1)
{
version = txt; // Must be at the end of the string
}
else
{
version = txt.Substring(0, pos);
}
}
break;
}
}
regKey.Close();
}
return(Tools.DisallowNullString(version));
}
private void OpenRegistryKey()
{
this._adaSyncRegKey = CERegistry.LocalMachine.CreateSubKey("Software").CreateSubKey("Inflaton").CreateSubKey("ADA").CreateSubKey("AdaSyncPpc");
}
