public static void EnableDevice(IntPtr handle, SP_DEVINFO_DATA diData, bool enable)
{
var parameters = new PropertyChangeParameters();
// The size is just the size of the header, but we've flattened the structure.
// The header comprises the first two fields, both integer.
parameters.Size = 8;
parameters.DiFunction = DiFunction.PropertyChange;
parameters.Scope = Scopes.Global;
parameters.StateChange = enable ? StateChangeAction.Enable : StateChangeAction.Disable;
if (!NativeMethods.SetupDiSetClassInstallParams(handle, ref diData, ref parameters, Marshal.SizeOf(parameters)))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
if (!NativeMethods.SetupDiCallClassInstaller(DiFunction.PropertyChange, handle, ref diData))
{
var err = Marshal.GetLastWin32Error();
if (err == (int)SetupApiError.NotDisableable)
{
throw new ArgumentException("Device can't be disabled (programmatically or in Device Manager).");
}
if (err >= (int)SetupApiError.NoAssociatedClass && err <= (int)SetupApiError.OnlyValidateViaAuthenticode)
{
throw new Win32Exception("SetupAPI error: " + (SetupApiError)err);
}
throw new Win32Exception(err);
}
}
// enable/disable...
private static void EnableDevice(SafeDeviceInfoSetHandle handle, DeviceInfoData diData, bool enable)
{
PropertyChangeParameters @params = new PropertyChangeParameters();
// The size is just the size of the header, but we've flattened the structure.
// The header comprises the first two fields, both integer.
@params.Size = 8;
@params.DiFunction = DiFunction.PropertyChange;
@params.Scope = Scopes.Global;
if (enable)
{
@params.StateChange = StateChangeAction.Enable;
}
else
{
@params.StateChange = StateChangeAction.Disable;
}
bool result = NativeMethods.SetupDiSetClassInstallParams(handle, ref diData, ref @params, Marshal.SizeOf(@params));
if (result == false)
{
throw new Win32Exception();
}
result = NativeMethods.SetupDiCallClassInstaller(DiFunction.PropertyChange, handle, ref diData);
if (result == false)
{
string errorMessage = new Win32Exception(Marshal.GetLastWin32Error()).Message;
int err = Marshal.GetLastWin32Error();
if (err == (int)SetupApiError.NotDisableable)
{
throw new ArgumentException("Device can't be disabled (programmatically or in Device Manager).");
}
else if (err >= (int)SetupApiError.NoAssociatedClass && err <= (int)SetupApiError.OnlyValidateViaAuthenticode)
{
throw new Win32Exception("SetupAPI error: " + ((SetupApiError)err).ToString());
}
else
{
throw new Win32Exception();
}
}
}
private static void EnableDevice(SafeDeviceInfoSetHandle handle, DeviceInfoData diData, bool enable)
{
PropertyChangeParameters propertyChangeParameters = new PropertyChangeParameters
{
Size = 8,
DiFunction = DiFunction.PropertyChange,
Scope = Scopes.Global,
StateChange =
enable
? StateChangeAction.Enable
: StateChangeAction.Disable
};
// Set the parameters
bool result = Win32.SetupDiSetClassInstallParams(handle, ref diData, ref propertyChangeParameters,
Marshal.SizeOf(propertyChangeParameters));
if (result == false)
{
throw new Win32Exception();
}
// Apply the parameters
result = Win32.SetupDiCallClassInstaller(DiFunction.PropertyChange, handle, ref diData);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
if (err == ( int )SetupApiError.NotDisableable)
{
throw new ArgumentException("Device can't be disabled (programmatically or in Device Manager).");
}
if (err <= ( int )SetupApiError.NoAssociatedClass &&
err >= ( int )SetupApiError.OnlyValidateViaAuthenticode)
{
throw new Win32Exception("SetupAPI error: " + (( SetupApiError )err));
}
throw new Win32Exception();
}
}
public static extern bool SetupDiSetClassInstallParams(SafeDeviceInfoSetHandle deviceInfoSet,
[In()] ref DeviceInfoData deviceInfoData, [In()] ref PropertyChangeParameters classInstallParams,
int classInstallParamsSize);
internal static extern bool SetupDiSetClassInstallParams(IntPtr deviceInfoSet, [In] ref SP_DEVINFO_DATA deviceInfoData,
[In] ref PropertyChangeParameters classInstallParams, int classInstallParamsSize);