| CBCAP_PACKET | A type definition for the b-CAP packet |
| CCALL_FUNC_TP | Callback functions of TP event |
| CCONN_BCAP_CLIENT | B-CAP client communication object |
| CCONN_BCAP_SERVER | B-CAP server communication object |
| CCONN_PARAM_COM | A type definition for serial connection parameters |
| CCONN_PARAM_COMMON | A type definition for common communication parameters |
| CCONN_PARAM_ETH | A type definition for Ethernet connection parameters |
| CCONN_PARAM_TP | TP communication object |
| Cfd_set | |
| Cin_addr | |
| CMAP_ID | A map for function id information |
| CRTK_PACKET | A type definition for the ROBOTalk packet |
| CSAFEARRAY | A type definition for the array |
| CSAFEARRAYBOUND | A type definition for the bound of SAFEARRAY |
| Csockaddr | |
| Csockaddr_in | |
| CtagCY | A type definition for the signed 64bit integer |
| Ctimeval | |
| CTP_FLAGS | TP flag objects |
| CTP_KEY_INFO | TP key bit mapping |
| CTP_TOUCH_INFO | TP touch bit mapping |
| Cudpaddr | A type definition for parameters of udp_send and udp_recv |
| CVARIANT | A type definition for the multi type variable |
| CVEC_OBJECT | A vector for stacking created objects |