internal static extern ConfigManagerResult CM_Get_DevNode_Property(
uint devInst,
ref DevPropKey propertyKey,
out DevPropType propertyType,
IntPtr buffer,
ref uint bufferSize,
uint flags);
internal static T GetProperty <T>(uint devInst, DevPropKey propertyKey)
{
const int bufferSize = 2048;
IntPtr propertyBufferPtr = Marshal.AllocHGlobal(bufferSize);
uint propertySize = bufferSize;
try
{
if (NativeMethods.CM_Get_DevNode_Property(
devInst,
ref propertyKey,
out DevPropType propertyType,
propertyBufferPtr,
ref propertySize,
0) == 0)
{
if (propertySize > 0)
{
return(DeviceHelper.ConvertPropToType <T>(propertyBufferPtr, propertyType));
}
}
}
finally
{
Marshal.FreeHGlobal(propertyBufferPtr);
}
return(default(T));
}
internal static T GetObjectPropertyInfo <T>(
IntPtr driverStoreHandle,
string objectName,
DevPropKey propertyKey,
DriverStoreObjectType objectType = DriverStoreObjectType.DriverPackage)
{
const int bufferSize = 2048;
IntPtr propertyBufferPtr = Marshal.AllocHGlobal(bufferSize);
if (NativeMethods.DriverStoreGetObjectProperty(
driverStoreHandle,
objectType,
objectName,
ref propertyKey,
out DevPropType propertyType,
propertyBufferPtr,
bufferSize,
out uint propertySize,
DriverStoreSetObjectPropertyFlags.None))
{
if (propertySize > 0)
{
return(DeviceHelper.ConvertPropToType <T>(propertyBufferPtr, propertyType));
}
}
Marshal.FreeHGlobal(propertyBufferPtr);
return(default);