Hi,
I am using HDF.PInvoke 1.10.0.4 but I am struggling to read the string
value of an attribute when it is variable length.
Ultimately I believe I need to call:
GCHandle hnd = GCHandle.Alloc(*data*, GCHandleType.Pinned);
int err = H5A.read(aid, *typeId*, hnd.AddrOfPinnedObject());
hnd.Free();
Where data is a suitable object.
I am confident that the attribute id (aid) is correct because it works
for all the other attributes types.
I am not so confident on the typeId, I have tried:
H5T.get_type(aid);
* H5T.get_native_type(tid);
H5T.create(H5T.class_t.VLEN, H5T.VARIABLE);
H5T.create(H5T.class_t.STRING, H5T.VARIABLE);
Likewise for the data and I have tried:
* data = new byte[256];
data = new IntPtr[1]; => data[0] = GCHandle.Alloc(byte[256],
GCHandleType.Pinned).AddrOfPinnedObject()
The only time some non-zero values were returned was case (*) but then I
couldn't relate the values to the expected text.
Thanks,
Matt
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