XCB_X_PRINT_GET_DOC_SECOND_CONSUMER

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
alias XCB_X_PRINT_GET_DOC_SECOND_CONSUMER = xcb_x_print_get_doc_t.XCB_X_PRINT_GET_DOC_SECOND_CONSUMER

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