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# BTLVNode
[Data Fields](#pub-attribs)
`#include <`[btlv.h](/s-adk-5.1-programmers-guide/btlv_8h_source.md)`>`
Inheritance diagram for BTLVNode:
\[[legend](/s-adk-5.1-programmers-guide/graph_legend.md)]
Collaboration diagram for BTLVNode:
\[[legend](/s-adk-5.1-programmers-guide/graph_legend.md)]
| | |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Data Fields | |
| struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md) \* | [pxNext](#a048aed5fef433724f94d95cfec2d33df) |
| struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md) \* | [pxFirst](#a66f9bd31fc168407f7724e16edf60bf5) |
| struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md) \* | [pxParent](#a60e4095f792d811b9826a4cff5047fcc) |
| struct [MemoryPool](/s-adk-5.1-programmers-guide/readme/files/dir_f2a776acea245b054b8e462971041f2d/dir_a10348dacfa670aa644c1e595a24cf25/dir_2b94011182cccbeeedaa27d80210d4e6/dir_811fc19cda6e4229a2bc03f90d55dff0/mem__pool_8h.md#struct_memory_pool) \* | [pxMempool](#a3faa46016cfde528233b2d81eddc8fd3) |
| char | [tcName](#a135733138da2d26ea5be2810030ce389) \[2 \*[MAX\_TAGSIZE](/s-adk-5.1-programmers-guide/readme/files/dir_f2a776acea245b054b8e462971041f2d/dir_a10348dacfa670aa644c1e595a24cf25/dir_2b94011182cccbeeedaa27d80210d4e6/dir_811fc19cda6e4229a2bc03f90d55dff0/btlv_8h.md#a50b52ae3c35fc20556babf890cfac1e8)+1] |
| char | [cConstructed](#aa49ad6910f8c0173df2f113ce5fe61ad) |
| unsigned char \* | [pucData](#a53aa1f2ebeda62fb9f53902b93665db7) |
| unsigned | [uSize](#a4701e420ca6a8de15ab0c6dcd3e58680) |
### DetailedDescription
data node containing one tag or a root node
#### Date
4.12.2006
#### Author
M. Meixner
### FieldDocumentation
### cConstructed
char cConstructed
type: 0=primitive, 1=constructed
### pucData
unsigned char\\\* pucData
pointer to data (only primitive nodes)
### pxFirst
struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md)\\\* pxFirst
first child (content) node
### pxMempool
struct [MemoryPool](/s-adk-5.1-programmers-guide/readme/files/dir_f2a776acea245b054b8e462971041f2d/dir_a10348dacfa670aa644c1e595a24cf25/dir_2b94011182cccbeeedaa27d80210d4e6/dir_811fc19cda6e4229a2bc03f90d55dff0/mem__pool_8h.md#struct_memory_pool)\\\* pxMempool
memory pool used for allocation
### pxNext
struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md)\\\* pxNext
used for chaining nodes
### pxParent
struct [BTLVNode](/s-adk-5.1-programmers-guide/readme/annotated/struct_b_t_l_v_node.md)\\\* pxParent
parent node
### tcName
char tcName\\\[2 \\\*[MAX\_TAGSIZE](/s-adk-5.1-programmers-guide/readme/files/dir_f2a776acea245b054b8e462971041f2d/dir_a10348dacfa670aa644c1e595a24cf25/dir_2b94011182cccbeeedaa27d80210d4e6/dir_811fc19cda6e4229a2bc03f90d55dff0/btlv_8h.md#a50b52ae3c35fc20556babf890cfac1e8)+1\\]
tag name (0-terminated C-string)
### uSize
unsigned uSize
size of data (primitive node) or total size of child nodes (constructed). This size does not include the tag name or the number of bytes for the size field
***
The documentation for this struct was generated from the following file:
* emv/TLV\_Util/export/emv/[btlv.h](/s-adk-5.1-programmers-guide/btlv_8h_source.md)
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