code: func GetActiveUniformBlockName(program uint32, uniformBlockIndex uint32, bufSize int32, length *int32, uniformBlockName *uint8) {
  	syscall.Syscall6(gpGetActiveUniformBlockName, 5, uintptr(program), uintptr(uniformBlockIndex), uintptr(bufSize), uintptr(unsafe.Pointer(length)), uintptr(unsafe.Pointer(uniformBlockName)), 0)
  }
docs: // retrieve the name of an active uniform block